Obs. place: Hartola, Finland
NE Lim.mag: 7.0 (zenith)
SQM-L: 21.40 (zenith)
Background sky: 7/10 (fairly good)
Seeing: 7/10 (fairly good)
Transparency: 7/10 (fairly good)
Weather: +9°C - +2°C, humidity 74-90%, 1010 hPa, W wind 3-8 m/s, clear.
|Around 7 pm the sky was still covered in clouds|
I was fairly well armed, however had no laptop or additional sky charts with me apart from Uranometria which proved to be a pretty bad idea. I struggled to find many of the fainter objects as they were not immediately visible.
Without further ado here are some of the more uncommon described as I saw and experienced them. I will add the drawings to this post later on when I have the sketches processed.
Palomar 10 (altitude ~46°)
Despite my best efforts I could not see the globular cluster. I was exactly at the right position but could not pick out anything that resembled a glow.
Uwe Glahn reported Palomar 10 as "very faint, difficult to detect" using a 16" telescope. Iiro Sairanen described the object "very faint haze without clear shape with extremely averted vision at 176x" with a 18" telescope. So with this mind, I suppose it is forgiveable that I could not pick it out.
Messier 57 central star (altitude ~55°)
During few fleeting moments I could just see the central star @ 357x but not with any magnification below that. I managed to see a magnitude 15.3 star close to M57 fairly easily as well as a magnitude 15.7 from time to time. My previous sighting on the central star was back in 2008 using 12" GSO. My notes say: "central star was invisible @ 429x but fairly easily spotted @ 600x".
NGC 6826 outer halo (altitude ~71°)
Surprisingly easily visible as a 2' circular ring surrounding the "actual" NGC 6826 @357x. I also suspected a slightly brighter spot on the NE side of the outer halo. This seems so collaborate with a small knot visible in photographs.
IC 4677 (altitude ~66°)
Invisible without a filter but with Lumicon O-III almost shamefully easy. NE-SW elongated blob nearly midway between NGC 6543 and PPM 20675.
Veil nebula complex (altitude ~56°)
Stunning view. I did a rough sketch showing several fainter components visible in the region. Simply by using Uranometria I was able to spot at least 17 different components in the Veil nebula. Looking at a map @ Adventures In Deep Space (by http://www.astronomy-mall.com/Adventures.In.Deep.Space/Veil.big.jpg) I could see all the marked components apart from "B" even without a proper map of the region.
Abell 6 + PK 136+5.1 (HFG 1) (altitude ~70°)
Despite interference from an annoyingly bright HD 18137, Abell 6 was fairly easy to see using a O-III filter. HFG 1 was a lot more of a challenge only barely showing a 6' irregular/circular glow.
Pegasus dwarf / UGC 12613 (altitude ~42°)
Fairly bright, visible SE of a Y-shaped asterism as a 2' x 1' NW-SE elongated glow without a nucleus.
|NGC 604 (altitude ~59°)|
I got inspired to view this object again after seeing a sketch made by Riku Henriksson at the DSA. Riku's sketch is an excellent representation of what I could see with my telescope - apart from the actual individual stars. There was "a string of stars" [without the stars!] visible in the NW section of the nebula as well as a stellar brightening visible in the southern section of NGC 604.
Full list of objects observed. Asterisk (*) = sketched.
Collinder 399, NGC 6802, Cr 399, Palomar 10 (negative observation), Messier 71, Messier 57(*), NGC 6826(*), IC 4677(*), NGC 6910, NGC 7027(*), NGC 6888(*), Veil nebula complex, Palomar 1(*), PK 80-6.1 / Egg nebula(*), NGC 7000, NGC 6991, Messier 39, NGC 7026(*), NGC 7048, Stock 5, NGC 886, Abell 6(*), HFG 1(*), Pegasus dwarf(*), Messier 33 (naked eye), NGC 604(*), NGC 1 & 2(*), NGC 16, NGC 22, UGC 69, Andromeda galaxy, NGC 206, Messier 52 + Cz 43, NGC 7635 / Bubble nebula(*), Cassiopeia A(*).