It is currently Mon May 30, 2016 9:09 pm

News News of

Site map of » Forum :

A short text to describe your forum

Calculate azimuth from declination

In a paper from 1912, an observer wrote about one of the stone rows from the stone circle of Calanais (58 02 N, 06 45 W): "The azimuth of this alignment, combined with the altitude of the horizon seen along it, produce a declination of 6 43' N.
How did he calculate this and how would I calculate what the azimuth was with an altitude of 1 degree?
Read more : Calculate azimuth from declination | Views : 387 | Replies : 3 | Forum : Ask a silly (astronomy) question

First attempt at Saturn

Hi everyone I got an image of saturn this morning without any barlow and it was a bit windy,but here is my result. :o
Thanks for looking.
Read more : First attempt at Saturn | Views : 249 | Replies : 4 | Forum : Your astro observations, images & sketches

U.F.O posing as stars???

Today me and a freind were looking at some stars when we noticed a group of 3 stars that were perectly symetrical to each other forming a triangle (one brighter star at the top and two dimmer stars at the bottom). while looking at the brighter star we noticed that as it moved through the sky the two dimmer stars moved with it, all 3 stars were moving in perect sync. We found it quite ...
Read more : U.F.O posing as stars??? | Views : 426 | Replies : 5 | Forum : General

Pointing a Dobsonian

I have just bought a Sky Watcher 200mm Dobsonian on eBay (cheapy cheep) and have already managed to be really impressed with a snatched view of Jupiter, complete with coloured bands and moons, through some small gaps in the cloud.
Now, I am not tall and I can use the eyepiece with reasonable comfort by bending down a bit or, I guess, using a stool. But the Finder scope is a real struggle and I ...
Read more : Pointing a Dobsonian | Views : 253 | Replies : 1 | Forum : Equipment Advice

How high a magnification can I go and still focus w barlow?


I am now proud owner of a Skyliner 200p dobbie. Before I buy extra eyepiece \barlow etc I tried out my old SR4mm lens on the new dobbie. I found I was able to focus it successfully which is something I could not do on the old scope the SR4 came with. The picture was poor as the lens is a cheapo though.

It got me thinking however. If i bought say a 2.5 ...
Read more : How high a magnification can I go and still focus w barlow? | Views : 252 | Replies : 3 | Forum : Equipment Advice

12" f5 Reflector on Dobson Mount

Hello SaN forum members, nice to meet you.

I've been interested I astronomy for a while now and previously owned a Meade ETX-125 whilst working in London. I've since relocated back up to the NW - and now have the opportunity of reaching some dark sky sites from home - so looking to buy a new telescope.

My interest is mostly in viewing, rather astrophotography, for Lunar, Planetary and DSO, so looking to buy a ...
Read more : 12" f5 Reflector on Dobson Mount | Views : 336 | Replies : 4 | Forum : Equipment Advice

Modified Moon image

Hi everyone this is another image that I slightly modified of the moon using the sharpness and contrast.
Read more : Modified Moon image | Views : 223 | Replies : 2 | Forum : Your astro observations, images & sketches

Hi Everyone

Hi All,

I have recently retired, and have been meaning to join an astronomical group for some time.

My name is Roger, and I live in Birmingham, but spend a lot of my time in N.Wales, and am looking to get more acquainted with astronomy. So I am looking to get my first instrument, so much choice, so much advice, but I am thinking of getting a good pair of binoculars initially.


Read more : Hi Everyone | Views : 310 | Replies : 1 | Forum : Introductions

planets on allwise images

hi ya am a budding amateur astronomer have been spending allot of time on sky watch alpha viewing their phenominal images.
my question is are you able to see our solar planets on these images or does the view differ wether being on the ground or being on hubble. i have been searching for jupiter have been following star charts for this time of year but cant seem to pin it down.
is there something ...
Read more : planets on allwise images | Views : 373 | Replies : 2 | Forum : Ask a silly (astronomy) question

my first ever image

Hi everyone this is my first image with my new gpcam of the moon hopefully will get better in the future.
Read more : my first ever image | Views : 295 | Replies : 6 | Forum : Your astro observations, images & sketches


Login  •  Register


Total posts 129371 • Total topics 19558 • Total members 141864