Thursday, March 20, 2025

How much does amateur astronomy cost?

Astroboy and stack of Benjamins
tl;dr: It costs whatever you have to spare that you want to invest in it.

I was recently reading a thread on the Cloudy Nights amateur astronomy forum in which the poster was complaining how some people are always claiming how expensive amateur astronomy is, when it "really isn't." These threads pop up periodically, and usually follow the same course. (Above: Andrew Magill from Boulder, USA, CC BY 2.0, via Wikimedia Commons; Astroboy by Astronomerica)

First, let me comment that many of the most frequent posters on Cloudy Nights seem to mostly be retired engineers, white collar skilled workers, or successful retired "boomers" (full disclosure: I am a retired "boomer") who have fairly large disposable incomes. Often someone will state that compared to expensive motorcycles, high end photography, golf memberships and green fees, high end gaming, skiing equipment and lift fees, and the like, amateur astronomy is cheap. Well, if you look at it that way, it is. Until you buy land out in the boonies and build your own observatory to house your 6" refractor imaging rig. But most of us will never have the money, opportunity, or life situation to do that.

Eric observing with his Tasco telescope
But how about those people, and not just kids, who don't have thousands or even hundreds of dollars to spend on a hobby? I remember when I lived in a 24' travel trailer, had a minimum wage job, and thought that buying a 4.5" Tasco 11TR department store reflector for almost $200 was a huge splurge—and it was for me. By the way, I did start out with $20 Tasco binoculars before I could afford the telescope.

I grew up being frugal and I still am as a matter of principle. Even if I can afford something more expensive, I like to see how much enjoyment I can get out of a less expensive option. That extra 300% in price often only buys a 10% improvement in what really counts: enjoyment. Maybe 1000% will buy a 50% improvement, but that often takes the expense well out of a person's budget range. (Above: At Bull Creek Wildlife Management Area in Central Florida, 1993, with myTasco 11TR department store reflector. Some of the happiest nights of observing in my whole life.)

The SV510 solar telescope
Hence, with Astronomerica I attempt to demonstrate that it doesn't take a lot of money—whatever that means to you—to enjoy amateur astronomy. We constantly read about "hobby killer" cheap telescopes. That's probably what my 4.5" Tasco was considered by many at the time, yet it helped me develop a hobby that I have enjoyed for the rest of my life, because if you don't approach it from an elitist perspective, it's not a bad scope. 

No one wants to buy crap, but even now there are some decent telescopes for $250 or even less. I just picked up a Svbony SV510 solar telescope (above) for less than $10 new that actually shows sunspots pretty well, even if it's on a very rickety tripod. If that's what you have to start with, then go for it. Just understand the limitations. "Perfect is the enemy of good" (Voltaire).

Many times I read posts where people say for $500 a particular piece of gear is too good of a deal not to buy, even if it's just to try it out. After all, it's "only" $500! Don't we all wish we had that kind of mad money? Others consistently recommend finding a higher quality piece of gear used. But most people don't want to wait weeks, months, or even years for that particular equipment to come up on the used market, just to see it sold to a retired "boomer" engineer before they can even get home from school or work to check the classifieds.

The Apertura 8" Dobsonian telescope
I know from experience that there are ways to get a lot of enjoyment out of amateur astronomy for very little cost.  But as you get more into the hobby it can cost you more. Want to get away from your Bortle 9 city lights out to the country? Better have a car and gas money, or a friend who has both and is also into astronomy (good luck with that). Want to buy that perfect beginner 8-inch Dobsonian? Better have $600, plus a phone with a charting app or money for a star charting book, plus a suitable observing chair, plus good cold weather gear, etc. 

It does get expensive by many people's standards. But do we really need that 8-inch dob as our perfect starter scope that will "serve us well for a lifetime?" No. You can get good binoculars for a third of that price, and "recommended" cheap binoculars for perhaps half of that. Cheaper if you get them on sale, or the price of club dues if you're lucky enough to have a local astronomy club that has some to borrow. (Above: Apertura 8-inch Dobsonian, the "perfect" starter scope for those with $600 to spare.)

Woman harvesting wheat and dreaming of that high-end Takahashi refractor
While I love forums like Cloudy Nights, Stargazer's Lounge, and Reddit (r/telescopes), there is a strong tendency for the frequent posters to make it sound like if you don't get this or that recommended equipment, then you're making a huge mistake. "Better to buy once and cry once," is the mantra. Easy to say if you have the money on hand to do so. If not, they then suggest you wait and save your money until you can. Depending on your situation, that might take many months, if not years. There really is no reason not to start with whatever modest equipment you have, even if it's a cheap lawn chair, your own eyes, and a bottle of bug spray. (Left: Nikolay Andreyev, Public domain, via Wikimedia Commons, modified for amateur astronomy FOMO)

I recommend you read those forums but don't fall into the trap of thinking you have to have a pile of high quality equipment to enjoy amateur astronomy. Consider the situations of those making the recommendations, and consider your own situation. One user may have 20 telescopes, 50 eyepieces, and a fountain of experience (who is also the one that tells you "Better to buy once and cry once!"). You don't need to be that person. You aren't that person. You can enjoy the night sky the way you can, given your own means and situation. Don't feel like you're missing out. You're seeing the same things everyone else is. Someone will always have a better view. Don't let that keep you from looking up.

Enjoy the journey, wherever you start and wherever you wind up.

Friday, March 7, 2025

Taking an astronomy trip by air

Southwest Boeing 737-700
Whether you're taking a trip purely for astronomy observing, or you'd like to do some observing on the side, having something to magnify your view can really add to the experience. Here I'm not talking about scopes that pack into the car for a drive but ones that you can carry with you on an airplane. That's a big difference. Your standard "grab 'n go" scope may not make a good airline travel scope once you try to put it in your luggage.


When to go

Southern Cross and the Coal Sack
The Southern Cross from Florida in September?
Not gonna happen!
(Naskies at en.wikipedia, CC BY-SA 3.0,
via Wikimedia Commons)
The most obvious consideration for when to go is to plan it around new moon. Consult an app or website to see when it gets dark and when the Moon rises or sets. If you are likely only to observe during the early part of the night, go within the week before new moon, when the Moon rises in the early morning hours. 

Research your destination and find out what months have the best chances for good observing weather.

Consider what objects you would really like to see. For example, going to the Florida Keys to see the Southern Cross, Omega Centauri, and NGC 5128 won't work in September. Use a charting app such as Sky Safari or Stellarium to see what will be up throughout the night.


Choosing a destination 

First and foremost, you'll want dark skies that have frequent clear nights and good seeing. Harder than finding that, though, is finding a place where there are no local lights to ruin an otherwise great sky. Non-astronomy people will often rave about the great sky, with no attention paid to all-night lighting that would be a deal-killer for astronomers. Even a single LED on a nearby outbuilding can be incredibly annoying.

Unless those traveling with you are as excited about astronomy as you are, and even if they are, it's good to have alternate activities available so everyone is happy and you have some variety. If they aren't into nature and the outdoors, you'll probably be limited to a fairly mediocre sky with lots of lights. Most destinations also have a chance of cloudy nights.

I recommend a place that has a kitchen, so you can prepare your own meals. You won't spend as much money, you'll be able to be set up and ready at dusk, and you'll be able to plan the meals and snacks around your observing and sleeping schedule.

Excepting stays in really posh digs, the largest part of the budget will likely be the air travel. You might find dark skies closer than you think unless you're bent upon seeing the opposite hemisphere. After all, the constellations are the same until you change latitude significantly.


Access to a telescope at your destination

Equipment rental list
The most convenient travel solution is to have a telescope waiting for you at your destination. You could ship your equipment, but that could be expensive and any delay could ruin your chances to observe. I have read about some people doing this for very distant trips, and maybe that's a decent solution in that case.

Above: The non-profit Reach for the Stars in Tucson, AZ, rents telescopes. Check for telescope stores or astronomy clubs at your destination that might be able to set you up with a telescope.

Marathon Motel Sky Park telescope presentation
Some astronomy-suitable vacation rentals (dark sky, minimal light pollution) come with telescopes, but while I was doing research I found that most don't. I think trying to maintain them is more of a hassle than it's worth, except for a very few number of places dedicated to astronomy observing. Most places cater to a wider variety of interests because, let's face it, the market for astronomy vacation rentals is pretty miniscule.


Above: The Marathon Motel Sky Park in Marathon, TX, provides nightly observing programs with their 20" and 24" Dobsonians, as well as powered telescope pads if you bring your own.

Still, if I had a rental property where I knew astronomers would be staying, I would probably have an 8 or 10-inch Dob available because there's not much you could do to break one of those. However, then you have to have a chair and eyepieces and a finder and all that kind of stuff that can be broken, lost  stolen, or ruined fairly easily. So I understand the lack of available equipment.

As a renter, you don't know what kind of shape the equipment is in, or what comes with it. So it's good to bring, at the very least, binoculars, and if you can manage it, a small telescope and a small collection of eyepieces.

On my recent trip to Arizona Sky Village, I had arranged several options for on-site telescopes in advance, including observing with somebody who lived in the area and renting a telescope from a place near the airport. In the end we just used what I had brought with me. I couldn't have even rented an 8 or 10-inch Dob because it would not have fit in the rental car with three of us and all of our luggage!


What makes a good air travel scope

I'm not a refractor guy, not because I don't like them, but because refractors have never really fit into my style of observing. Many people use wide field refractors, for example 80mm refractors, as travel scopes. It seems like a good idea because they're small and relatively lightweight, and many people go that route. Little Maksutovs are also a popular choice, and although they have a limited field of view, they can double as a terrestrial scope with an erecting prism.

Using the Bino Body Mount
For me, it makes more sense to bring a good pair of binoculars than a wide field refractor or "Mak" of small aperture. Binoculars can be used for birding and nature watching in addition to astronomy and don't require much else. And what can be better than lying back while you're observing? See my Bino Body Mount post for a great lightweight mount for binoculars, pictured at left, that you can easily break down and pack in a suitcase.

Therefore, If I'm going to bring a telescope, I want something with as large an aperture as possible because I already have the low power/wide field experience covered with the binoculars. But it's problematic when you have to pack a telescope for a plane trip. 

Do-it-yourselfers have built some pretty incredible travel telescopes with larger apertures. But most of us don't have the skills, the time, or the money for that. Commercial versions are pricey. So we look for mass-produced telescopes that are lightweight and small but pack as much aperture as possible. 


Can a 6-inch be a travel scope? 

I can definitively say yes. I took my collapsible Sky-Watcher Virtuoso GTI 150P (6-inch) optical tube assembly (OTA) off its bulky go-to mount and built a travel mount for it. The entire setup weighs about 25 lbs. I took it with me from Virginia to Arizona and back by air and rental car, and was really glad to have that much aperture to appreciate the dark Arizona skies. 

If you want to go with a refractor or Maksutov, fine. You'll need that, a tripod, and some eye pieces, at a minimum. If you want to sit, you'll need some sort of chair you put outside and move around. 

I don't recommend a high-end scope or even a medium-end scope for air travel, because you may never see your luggage again, it may get broken, and even if you carry on the OTA, you still have to pack it well and there's a chance you may end up having to gate check it. 

I packed my OTA in a 22-inch hard shell carry-on suitcase, packing all my warm jackets around it, and it did fine. The mount, tripod table, and associated gear all fit in a 26-inch checked roller suitcase. My wife and I carried on the eyepieces, finderscope, and two pairs of binoculars (15x70 and 10x56) in a case and a small bag that fit under the seats. You can't put lithium batteries in your checked bags, so I carried them in my "personal item" bag that fits under the seat.

For eyepieces, I brought a Celestron Xcel-LX 25mm (30x), an Astro-Tech UWA 10mm (75x), a Svbony 7-21mm zoom, and a Svbony 2x barlow, giving me a range of powers from 30x to 214x, plenty for a 6-inch.

My 6-inch travel scope setup
My Sky-Watcher 150P came with a go-to mount, which I wasn't about to take apart, and it was too big to fit in any kind of suitcase I want to be lugging on a plane. I decided to put together a new mount for it, and chose the Svbony SV225 alt-az mount. It's relatively inexpensive, weighs a bit more than 5 lbs., it's sturdy, and can be compacted into a pretty small form factor. I fit it in a plastic shoebox with foam padding. I also built a tripod table which could be broken down flat, upon which I bolted the mount.

The biggest challenge was finding a chair that I could bring with me that was the right height for the telescope. I do not like observing standing up, especially for many hours at a time. The chair I usually use is a big heavy Denver style adjustable chair, which is too big and heavy for airline travel. 

I looked online and finally found a folding tripod chair where each leg folds in half, making it even more compact. It's called a GCI PackSeat. It weighs just over 1 lb. I stuck tennis balls on the bottoms of each leg to keep it from sinking into soft ground, and that worked great. It was just the right height, about 18", for my telescope once I added a stool cushion, fastening it to the chair seat with sheet stays.

Your rental may not have any outdoor chair suitable for use with the telescope, so if you're planning a trip and planning on sitting at your scope, make sure you know what height chair you need, and what they have at your destination, or bring something the right height to sit on.

Don't forget to inquire about reclining chairs if you plan on doing binocular observing. Some people use tripods or monopods, but for me they are tough on the neck for more than a few quick looks well below the zenith. The place I recently rented had Adirondack chairs that worked well.


Sizing it up 

Suitcase packed with mount, tripod and other gear
The three main rules for traveling by air are keep it light, keep it compact, and make it easy to assemble and disassemble. If you already have some luggage, it may be fine for your scope and mount/table/tripod. Otherwise buy luggage that will fit what you're designing or buying. I found that a 22-inch hard shell carry-on roller suitcase was the perfect size for the 6-inch collapsible 17-inch long OTA with suitable padding, namely my ski pants, a hoodie, a light down jacket, some gloves, and a hat. 

Try to use stuff you're going to bring anyway for padding rather than packing a lot of foam and dedicated padding. Just make sure it's packed well enough that it's not likely to receive damage under normal handling. 

Someone on Cloudy Nights mentioned they packed their OneSky 5-inch tube in their checked baggage in a duffel bag filled with clothes, and it made it fine. It depends on your own risk aversion how you want to handle that. I feel much more comfortable carrying the OTA on.

Watch your baggage weights and sizes and make sure you stay within the airline's limits. My 26-inch roller suitcase (above) that held the scope mount, table, bino mounts, observing stool, tools, windscreen, and other gear was pretty close to the max limit of 50 lbs. 


Disassembly and assembly

My travel mount and table disassembled
You want to make sure you have all the tools and bolts and other things that you'll need to assemble and take apart your gear. I found it was a good idea to go through the whole disassembly and reassembly process once I had collected all my tools and equipment, using just those things that I would be packing. That way I would immediately recognize if I was missing some key tool or item. 

Bring a few extra critical bolts, screws, washers, and other items in case you drop them and lose them. A single bolt could shut you down if you lose it. If you need a wrench, bring a compact 3/8 inch socket wrench and bring sockets in the right sizes that you'll need. Get a cheap stubby screwdriver if you need one.


Plan for the weather at your destination

Snow covered Chiricahua Mountains
Research the environment you're going to be in. For my trip to Arizona Sky Village in late October/early November, I realized based on my research that it was likely to be quite cold at night, possibly going into the mid-30s. Therefore, I made sure I brought plenty of warm layers, wool gloves, headband, hand warmers, and anything else I would normally wear for winter observing. It rained on the last night, and the nearby mountains (left) were covered with snow in the morning. 

I recently got a heated vest that's powered by a pocket power bank. It took up very little space but kept me very warm along with a hoodie and a light down jacket. Use several layers instead of bringing one huge bulky coat. You can add layers as it gets colder.

Even if it's nice and warm during the day, it may get quite cold at night, depending on where you're observing. So do your weather research in advance. 

Wind screen set up at my local observing site
The Arizona high desert can have some pretty strong winds, so when I went there, I brought a privacy screen I found at a Lidl grocery store (similar to this one) and used that. It worked very well, but I had to replace the cheap steel wire shepherd's hook stakes with aluminum gutter spikes. They were lighter and a bit stronger than the shepherd's hook stakes, which bend if you just look at them wrong. I used a local rock to pound in the stakes. I set the screen up at my local observing site first (above), so I knew how to do it and could evaluate the components.

A wind screen can also double as a light screen in case you encounter some unexpected all-night lighting, or a steady stream of car headlights.

If you will be observing in cold weather, your Mukluk or Sorrel boots are great, but they take up a lot of space in your luggage. Instead, bring chemical hand warmers, for example Hot Hands, and slip one under your toes in each shoe. Unless you're observing in sub-freezing weather, they will keep your toes warm all night. If the warmers are still hot and soft when you're done observing, put them into a Ziploc sandwich bag to cut the air off, and you'll be able to reuse them the next night. I used one pair of hand warmers three consecutive nights doing that, wearing them for probably a total of 12 hours.


Observing

Screenshot of Sky Safari Pro observing list
Bring whatever charts you're going to need, whether on an app or if you use paper charts. Don't forget a red light for when you're moving around or reading at night. Pack some spare batteries and a small charger if you think you'll need one, as well as wall chargers and charging cables. Even a non-electric setup probably has some requirements for juice. 

If you're going to be going in and out of a brightly lit house, room, or cabin, you can get a pair of red goggles that are used for laser work to protect your night vision when you go in for a snack or go to the bathroom. The darker the sky, the more important it is to protect your night vision.

What finder scope are you going to use? I packed my RACI finder with my eyepieces in a carry-on bag. I wrapped each one in bubble wrap.

Make a list of those objects that you really want to see. Maybe they're ones that you can't see from your light polluted home or typical observing site, or ones that are perhaps further south than you can ever view from home. Make sure they're reasonably high above the horizon at some point during the night from your destination location.

Above: Sky Safari Pro allows you to make your own observing lists. I made one for my recent trip to Arizona. Easy to load it in the app and cruise around to view your "must see" objects.


Dealing with an "oops"

It's a good idea to bring a small bottle of alcohol or lens cleaner and some q-tips and lens tissues. You might end up dropping an eyepiece in the dirt, as I did, and it's great to be able to just clean it right off and go right back to observing. See Televue's instructions on cleaning optics.

I brought a roll of white duct tape. I flagged the guy lines for the windscreen with them, which allowed us to see them easily at night so we didn't trip over them. I also made a repair to a plastic box that got broken on the outbound flight.