Search the Community
Showing results for tags 'm109'.
Found 5 results
My first attempt at M109, a galaxy located in Ursa Major which is about 55 million light years distant. In the image below you can also see quite a few other background galaxies - the ones marked PGC37553, PGC37700 and PGC37621 have recession velocities very similar to M109 and are classified as dwarf companion galaxies. The LRGB image below represents 16.5 hours integration and was taken with my Esprit 150. Alan M109 M109 (annotated) LIGHTS: L:37, R:21, G:23, B:18 x 600s. DARKS: 30, BIAS:100, FLATS: 40 all at -20C.
So, with the Moon not rising until just after 10pm and the littl'un in bed soon after 7pm, a window of opportunity. I was ready with cooled scope soon after 8pm and began the evening with M1 (The Crab Nebula). A fine sight in the 15mm eyepiece. Quite a large nebula, which appeared rectangular and slightly grainy when UHC filtered. This was the first time I had seen it for over two years. M35 was a lovely sight, with companion NGC 2158 a misty patch to the South of a group of stars South West of the main group. The use of averted vision was not necessary for this but was needed for IC 2157, a slightly more diffuse cluster further West again. Next up was 8 - Flora, an Asteroid well placed in Leo. At magnitude 9.1, it was quite easy to locate nearby to Eta Leonis. Another constellation rising quite high by this time is the magnificent Ursa Major. I managed to identify two more moderately diffuse galaxies which were in close proximity to Gamma Ursae Majoris; M109 and NGC 3953. Both of these required gentle movement of the scope to pick up. ____________________________________________________________ Observing Session: Sunday 8th February 2015, 20:10hrs to 21:40 hrs GMT VLM at Zenith: 5.0 - 5.1 ____________________________________________________________ Monday the 9th started with another clear sky and I was back out there by 8pm. I started with a quick re-alignment of my finderscope after I inadvertently loosened the wrong screws when disconnecting the night before (doh!). I began by going back to check the movement of 8 - Flora from yesterday. Before some light cloud rolled across Ursa Major / Leo, I also managed to locate NGC 2841, a bright and quite condensed galaxy near to the double star 37 Ursae Majoris which sort of makes a pair with the magnitude 8.5 star HD 80566. This is quite an easy find from the signpost stars Theta and 26 Ursae Majoris and is more prominent than a number of Messier objects. With cloud parked across half the sky, I finished the night with the camera trained on Orion for a few wide-angle snaps. I cannot remember the last time I had two nights running under the stars but it is nice to be back in the game. The Asteroid collection is into double figures and is ever growing; 1 - Ceres 3 - Juno 4 - Vesta 6 - Hebe 8 - Flora 9 - Metis 10 - Hygeia 12 - Victoria 13 - Egeria 15 - Eunomia (my first) ____________________________________________________________ Observing Session: Monday 9th February 2015, 20:00 hrs to 20:35 hrs GMT VLM at Zenith: 4.9 - 5.0 deteriorating as wispy cloud rolled in. New - Revisited - Failed
I have been sitting on a low quality data set of this classic barred spiral galaxy for some time, over 3 years. Taken with one of my SCT's, I dont recall which, and either Starlight H9, Atik 428, or 460 camera. Would have to dig deep to find those details. I didn't want to throw the data out, even though it lacked any green channel, but it was just taking up space on my laptop, so it was either, put it up, or chuck it out. So for better or worse, here is M109 with synthesised green channel. Maybe one day I will do this one justice, it is such a pretty little thing. has anybody observed this in any detail? Would be interested to hear if the barring is obvious at the eyepiece too? Thanks for looking Tim
Hi Folks, This is my first attempt at M109 taken on the 200p and EQ5 and guided with a QHY5v, it's 1hr 10mins in subs all 300s long with flats, darks and bias. This was the last image taken before i realised that i cant calibirate properly in DSS with JPEGS as it doesn't recognise the 550D's RAW files. feed back welcome. http://www.flickr.co...in/photostream/
Just gone ten o'clock and I notice a clear sky (well I didn't recognise what it was to start with, pin [removed word] points of light against a dark background - I wasn't used to it). Scrambled the scope to a state of readiness by 22:15 hrs and pointed it towards the Great Bear, which now dominated the Eastern sky and had risen quite high. An easy find was the galaxy NGC 3877, very close to Chi Ursae Majoris. At magnitude 11, this was not easy and looked like a small linear subtle wisp with averted vision which became more obvious with the 8mm X-Cel ED eyepiece. A short star hop to the East led to another galaxy NGC 3893, a larger wide oval haze which I found slightly easier to see. I then began another star hop from Gamma Ursae Majoris (Phad) via M109 which was not as obvious as I had previously noted, and eventually landed on NGC 4026 which was perhaps the most prominent galaxy of the night. It was much more condensed than the others and very slightly elliptical. Sadly some light cloud rolled in over the Eastern sky, so I switched to Orion just past its best in the Southwest. M42 and M43 looked mighty fine with the UHC-s filter on the 8mm eyepiece, although I couldn't pick up much texture. Something which I had managed previously on a slightly clearer night. Never the less, I managed to sketch it for the first time and will post a little later. The clouds had thickened up by now and more of the sky was now obscured. My scope had also misted up a little so I called it a night. Not the longest session ever but i'll take it right now! __________________________________________________ ______ Observing Session: Friday, 1st February 2013, 22:15 hrs to 23:10 hrs GMT VLM at Zenith: 5.1 New - Revisited - Failed