Finding Deals on Used Telescopes and Astronomy Gear on Craigslist and eBay

Astronomy has a well-known cycle: someone catches a glimpse of Saturn through a friend's scope, buys their own, spends a few clear nights out back, then life gets busy. The telescope moves to the garage, then eventually to Craigslist. For buyers, this is fantastic. Quality optics - the kind that cost $400-$800 new - regularly show up used in perfect condition for $80-$150, sometimes with eyepieces and accessories thrown in.

The used telescope market is genuinely one of the better-kept secrets for deal hunters. Most people selling have no idea what they have, which means pricing is inconsistent and opportunities are everywhere if you know what to look for.

What Sells and What to Search For

The telescope world breaks down into a few main types, and knowing the difference changes what you search for.

Reflectors (Newtonians and Dobsonians) are the most common finds. A 6" or 8" Dobsonian is a simple, durable design that rarely breaks. Orion, Sky-Watcher, and Zhumell make the popular ones. Search for "dobsonian," "reflector telescope," "Orion XT6," "Sky-Watcher 8" and you'll find plenty. These are great buys used because there's almost nothing to go wrong - it's mirrors and a tube, not delicate electronics.

Refractors are the classic long-tube designs. Small cheap ones are everywhere and usually not worth buying - the optics are poor. But grab an 80mm or 90mm apochromatic ("APO") refractor from a brand like Explore Scientific, William Optics, or Stellarvue and you've got something special. Search "APO refractor," "80mm refractor," or specific brand names. These hold value well, so sellers usually price them a bit higher, but still well under retail.

Computerized (GoTo) scopes are where you find the most confused sellers. A Celestron NexStar 5SE retails for $700+. A seller who just wants it gone might list it for $200 because it "needs a new battery pack" - a $15 fix. Search "Celestron NexStar," "Meade LX90," "GoTo telescope," and "computerized telescope." Read descriptions carefully and don't be scared of minor issues.

Eyepieces and Accessories Are Where the Real Steals Are

Here's something most people miss: the eyepieces and accessories often cost more than the telescope itself. A single quality eyepiece - Televue Nagler, Ethos, or Explore Scientific 82-degree - retails for $150-$400 each. Sellers routinely bundle them with a scope and price the whole lot based on the scope alone.

Search specifically for "telescope eyepieces lot," "astronomy eyepiece collection," and brand names like "Televue," "Nagler," "Pentax XW," "Explore Scientific 82." Lots of 5-10 eyepieces show up regularly, and if even one or two are quality glass, the whole lot might be worth buying just to resell the good pieces individually.

Other accessories worth hunting: Telrad finders, red dot finders, Barlow lenses, collimation tools, and equatorial mounts. An EQ5 or EQ6 mount - the kind astrophotographers use - retails for $500-$1,500 new. Used mounts with minor cosmetic issues show up regularly at 50-70% off.

Red Flags and What to Avoid

Not every telescope deal is a good deal. A few things to watch for:

• Department store brands - Tasco, Jason, Vivitar, and similar names are mostly junk. Wobbly mounts, poor optics, and almost no resale value. Skip them unless the price is under $20 and you're just curious.
• "Missing eyepiece" - A scope without its eyepiece is incomplete. Fine if you already have eyepieces, but factor in the cost of buying one separately.
• Fungus or haze on glass - Ask the seller to photograph the optics directly. Fungus can spread and is expensive to clean professionally. Haze on mirrors is cleanable, but haze inside lens elements on refractors usually isn't worth the trouble.
• Broken focuser - Focusers are replaceable, but a quality Crayford focuser runs $60-$120 to replace. Factor that into your offer.

Setting Up Alerts So You Don't Miss Anything

The best telescope deals go fast - often within hours of listing. Checking Craigslist manually every day is exhausting and you'll miss things. This is exactly what LurkMor is built for. You set up a search alert for "telescope," "Celestron," "Dobsonian," or whatever you're hunting, and you get notified the moment a matching listing hits Craigslist in your area. No more refreshing and wondering what you missed overnight.

For eBay, the same principle applies - saved searches with email alerts are useful, but the results can get noisy fast. Narrow them down with specific model names rather than broad terms like "telescope" to cut the clutter.

Where Craigslist Beats eBay for Telescopes

Shipping a telescope is a pain. Most OTA tubes (the optical tube assembly) are long and fragile, and mounts are heavy. A lot of sellers won't even try to ship - they just want someone to come pick it up. That means Craigslist often has better prices on larger scopes because the seller knows their audience is local and motivated.

eBay is better for eyepieces, small accessories, and portable scopes. A quality eyepiece ships in a padded box without drama. But for an 8" Dobsonian or a driven equatorial mount, Craigslist is where you'll find the best deals from motivated sellers who just want it off their hands.

What to Expect to Pay

Rough price ranges for used gear in good condition:

• Basic 4.5" or 6" Dobsonian: $50-$100
• 8" Dobsonian (Orion XT8, Sky-Watcher 8"): $100-$200
• 10"+ Dobsonian: $200-$400
• Celestron NexStar SE series: $150-$350 depending on aperture
• 80mm APO refractor: $150-$350
• Quality individual eyepiece (Televue, ES 82): $50-$150
• EQ5/HEQ5 mount: $200-$400

These aren't hard rules - you'll find better and worse. The point is that the ceiling on what you should pay used is well below retail if you're patient and move quickly when something good pops up.

Clear skies and good hunting.