Does anyone have a link or plans for making a set of rotating rings for a tube about 15 inches in diameter? John

In a forum recently, I noted someone posting an image taken with a 9" Mak. However, the person didn't mention their brand. So I ask: what firms make 9" Maks...

My question may call for an obvious answer but I need confirmation anyway. My planetarium software doesn't go back far enough (-99 999 BC for Starry Night) and...

Hi, How is the quality of the latest generation of celestron 11" SCTs? What is the most lemon one you've received. Cie

Whatever happened to that massive APM 14" lens that was ground for a Korean observatory? Did they install it? It has been haunting my dreams and I just have...

DrPostman wrote: A fellow on a Yahoo group I belong to claims that the moon is oriented wrong when he observes it. Since I am not an astronomer of any ...

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I just saw a video of the Takahashi Temma-2 goto mount. At first I thought they had added some movie sound effects to spice it up, but I think that is really...

Greetings... I see in the Willman-Bell catalog that I can get a pyrex 8" mirror kit for $150---supposedly includes everything. So how does one know they're...

Clear Sky Clocks (CSC) has recently added a number of items to the forecast, including wind, temperature and humidity. The forecast of Saturday morning,...

I have spent all afternoon trying to educate myself on what makes a good telescope and still find myself a bit confused. This is for a Christmas present for...

Have lunar experts come up with any reasons for why most of the large mares are one side of the Moon, i.e. the Earth facing side as opposed to the far...

The shower runs for December 8th to Decmber 15th with the peak on December 13th. Last night from a dark site in West Texas three observers counted 184 meteors...

Last week I received a Williams 2" SCT diagonal that had been backordered for about two months and I would like to buy a 2" Nagler to use with it. Funds are...

Hi All, We had a break in the lake enhanced clouds last night and this morning so I took advantage of the rare clear skies. With temps in the low 20's...

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For photo, How ? Thanks

Just got in from a delightful 15 or 20 minutes under the stars... cold out, but pleasant. The local cable says it's 8 degrees F out, (-13C) but I kinda doubt...

If you had your choice (for free) between a Vixen GP, with RA drive and wood legs, and a Celestron CG5-AS GT, which would you choose, and why? Primarily, my...

Hi ! I will receive soon 3x televue barlow With my Orion 100mm F6 refractor. What is the best ? The barlow in focuser and diagonal in barlow ? Or diagonal...