by Mike Conley
Sky appeared clear with much twinkling
Faintest star observed through telescope mag 11.7
* New objects for me
Old objects being observed for reference value
| Equipment | XT8 Orion (8" F/6 Dobsonian) |
|---|---|
| EP's | 21mm 85* fov Siebert, 32mm Plossel with UHC and 25mm Plossl
with O-III
The 21mm provided a better view without filter than the Plossels but since the Plossels were available, threaded for filters, they came in very handy providing a good view with the filters and allowing me to switch back and forth very quickly. |
| Charts | Starry Night Pro software on laptop |
Since I got the O-III and UHC filters I would HIGHLY recommend them for anyone observing in the light polluted skies of the city. If I had to choose one over the other I would definitely choose the O-III for city viewing however dark skies may be another story.
| Mars | |
|---|---|
| Seeing prevented observing any detail | |
| M8 Lagoon Nebula | (Cluster with Nebula) Mag 5.0, distance 6,500 ly |
| Almost no nebulosity using 21mm EP without filter 2 Clouds visible with separation using 32mm with UHC 2 Clouds and faint 3rd cloud using 25mm with O-III | |
| * NGC6595 | (Open Cluster) Mag 7.0, distance not listed |
| Faint fuzzy with no detail | |
| * NGC6589 | (description not listed) Mag not listed |
| No Nebulosity with any EP | |
| * IC1284 | (Diffuse Nebula) Mag not listed |
| No Nebulosity with any EP | |
| * TYC6269-4010-1 | Mag 6.78, distance 340 ly |
| * TYC6269-4009-1 | Mag 7.75, distance 553 ly |
| At first I thought this was a double since they were about 10" apart but SNP labels them as singles possibly because they are actually 213 ly apart. | |
| * M24 | Delle Caustiche (Cluster with Nebula) Mag 11.50, distance 10,000 ly |
| Slight nebulosity with 25mm/O-III and 32mm/UHC | |
| * M18 | (Open Cluster) Mag 8.0, distance 6,000 ly |
| Not very bright with light pollution | |
| * NGC6596/IC4701 | (Open Cluster/Diffuse Nebula) Mag not listed |
| Not very bright with light pollution | |
| M17 | Swan Nebula (Cluster with Nebula)Mag 7.0, distance 5,000 ly |
| Faint almost swan with 21mm no filter | |
| Definite swan with O-III and UHC | |
| *NGC6604 | (Cluster with Nebulosity) |
| Very faint nebula with O-III and UHC | |
Threshold check with TYC5685-3140-1 Mag 11.31 barely visible in 21mm