Search found 233 matches

by dazcaz
Sun Sep 09, 2007 12:06 pm
Forum: Absolute beginners
Topic: Found the Dumbell Nebula....I Think
Replies: 15
Views: 6026

Doubles are sometimes neglected IMO. A couple noteable one's for this time of year... Alberio Almach (also known as Almaak) Rasalgethi 61 Cygni Mizar Vega I love Mizar (A+B). I use them as my collimation test. The clearer the split the better the collimation. Again easy to find. I like things that ...
by dazcaz
Sun Sep 09, 2007 9:21 am
Forum: Absolute beginners
Topic: Found the Dumbell Nebula....I Think
Replies: 15
Views: 6026

Re: Found the Dumbell Nebula....I Think

M31 is our nearest neighbouring galaxy but is still 2 million LY away. I always get a kick out of seeing galaxies, they fill me with awe. Yes this is what kicks me. It's another Galaxy, another 100 billion solar/star systems. For all we know there could be millions of astronomers in M31 looking acr...
by dazcaz
Sun Sep 09, 2007 9:13 am
Forum: Absolute beginners
Topic: Found the Dumbell Nebula....I Think
Replies: 15
Views: 6026

Re: Found the Dumbell Nebula....I Think

Yes its a Newtonian and I don't have a collimator, its on my shopping list tho but I am a bit skint at the mo! :oops: You can make one out of a 35mm film canister. I've not done this, but quite a few have. I'm sure that someone on here will tell you how. If that fails, have look on Google. In my op...
by dazcaz
Sun Sep 09, 2007 9:04 am
Forum: Telescopes and instruments
Topic: New member wanting to buy a telescope.
Replies: 19
Views: 6799

Consider buying buying 2 or 3 scopes says First LIght Optics....Well he would say that wouldn't he as a telescope supplier!!!!!!! That's unfair! Steve has never given anything but good, honest, accurate and unbiased advice. He's cheap too... Err I mean his prices are good ;) If I had 1500 quid to s...
by dazcaz
Sat Sep 08, 2007 8:32 am
Forum: Absolute beginners
Topic: Found the Dumbell Nebula....I Think
Replies: 15
Views: 6026

Re: Found the Dumbell Nebula....I Think

I found Andromeda and that was also smudged. I am looking forward to seeing Orion and its nebula, I am hoping to see more detail in that one. Andromeda is side on so you will only see a smudge with an"arm" running from each side. It's great to see though. M42 in Orion is simply stunning. ...
by dazcaz
Fri Sep 07, 2007 9:39 am
Forum: General chat
Topic: The Cosmos: A Beginner's Guide: BBC2 tonight soon
Replies: 37
Views: 11511

Now that's my kind of astronomy programme :)

Brilliant!

Darren
by dazcaz
Fri Sep 07, 2007 8:52 am
Forum: Observing
Topic: Return of an old friend
Replies: 5
Views: 3605

Pre-dawn observing...you just cannot beat it. MF It's a shame they don't have a sky+ feature so you could record the early moring sky and observe it a more sensible time :) If the forescast is good over the weekend, I intend to, or will at least try to, get up early and enjoy the view. This will me...
by dazcaz
Fri Sep 07, 2007 7:28 am
Forum: Telescopes and instruments
Topic: Light gathering ability
Replies: 12
Views: 4218

Ooh this is getting very technical :) I was always led to beleive that the reason a longer focal length makes for higher magnification was that the light cone is expanding and therefore creates a larger image the further away from the source. So this tells me that the light reflected off the mirror ...
by dazcaz
Thu Sep 06, 2007 10:50 pm
Forum: Telescopes and instruments
Topic: Light gathering ability
Replies: 12
Views: 4218

Hi there, With a uniformly illuminated field, any f5 scope will put the same amount of light at the focal plane. My thoughts exatcly What the focal length changes is the size of the image at the focal plane. If you want the same image size then you will need a higher power eyepiece or a barlow in t...
by dazcaz
Thu Sep 06, 2007 10:37 pm
Forum: Telescopes and instruments
Topic: Light gathering ability
Replies: 12
Views: 4218

This message was typed at the time Goodtime was posting his :) So why F5????? Is it a different F ???? In photography an F5 lens is an F5 lens... Exposure will be exactly the same whether the lens is a 50mm F5 or a 400mm F5 you just have a narrower field of view on the longer lens. The length of tub...
by dazcaz
Thu Sep 06, 2007 8:35 pm
Forum: Telescopes and instruments
Topic: Light gathering ability
Replies: 12
Views: 4218

Light gathering ability

I have a Skywatcher 200... It's an F5. It's a superb light catcher. I'm thinking of buying it's smaller cousin the 130PM as a more portable, more motorhome friendly scope. This is shorter and also an F5.... Now the photographer in me tells me that this will be able to collect the same amount of ligh...
by dazcaz
Wed Sep 05, 2007 8:50 pm
Forum: Observing
Topic: Return of an old friend
Replies: 5
Views: 3605

Return of an old friend

An old friend returns :) Yesterday morning I was up at 4AM as I had to travel to Bracknell with work. At 4:30 I let the dog out. I looked up and just over my neighbour's wall I saw my old friend Orion. I shot back in the house and picked up my bins that live in the kitchen. M42 looked great. It was ...
by dazcaz
Sun Sep 02, 2007 7:22 pm
Forum: Observing
Topic: Possible Alpha Aurigid Outburst
Replies: 19
Views: 13435

Hi there. I was speaking to a chap recently at the Roseland Observatory in St Stephen, Cornwall about this and they are doing something. I think they will have some kind of aerial, a tv aerial I think, connected to a radio/scanner tuned in to Radio Cardiff. They will point the aerial in the genral ...
by dazcaz
Sun Sep 02, 2007 4:57 pm
Forum: Absolute beginners
Topic: Daft question re price of telescopes
Replies: 5
Views: 2576

Remember his wife has just had a baby.... It's not dedication, it's parenthood! :)

Darren
by dazcaz
Sun Sep 02, 2007 4:55 pm
Forum: Absolute beginners
Topic: New Enthusiast/Astrophotography/Camcorder
Replies: 4
Views: 1749

It doesn't take much to get hooked into this hobby. Usually the first glimpse of a planet seems to do it :) As for your camcorder.... You might find it a bit tricky. I have a super dooper 3CCD JVC thing.... A really nice bit of kit thanks to an elderly relative and a small cheque :) I cannot use thi...