Cassiopeia Observatory logo

Bighorn Fire Smoke,
North American Nebula, Cygnus Loop Nebula

Posted: 8 July 2020

Tuesday afternoon, 7 July 2020, there was some smoke visible from the Bighorn Fire, which was still at 119,020 acres and 78% contained. This was the first time in many days that smoke was visible from here.


Open: Tuesday, 7 July 2020, 1929 MST
Temperature: 97°F
Session: 1498
Conditions: Mostly clear

12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece

D7200 DSLR

After opening the observatory I prepared the D7200 DSLR for piggyback imaging.

1937 MST: sunset.

I mounted the D7200 DSLR piggyback on the 12" LX600 telescope using the ScopeStuff Camera Mount.


I then relaxed on the observatory patio bench to wait the stars come out.

2030 MST: back in the observatory.

2032 MST: LX600 ON, StarLock OFF, High Precision OFF.

2037 MST: viewed Supernova 2020nlb in M85 (galaxy) and Supernova 2020nvb in NGC4457 (galaxy), 102X.

Slewed to the star Deneb, SYNCed the AutoStar, and focused the 70-300mm lens on Deneb. Then slewed to NGC7000 (North American Nebula).

2052 MST: StarLock ON.

After doing some framing tests I took this StarLock autoguided, piggyback image of NGC7000 (North American Nebula), f/5, 5 minutes, ISO 4000, White Balance 5560K, Focal Length 70mm, slightly cropped.


Slewed to NGC6960 (Cygnus Loop Nebula). Did some framing tests. This is a StarLock autoguided, piggyback image of NGC6960, f/5.3, 1 minute, ISO 6400, White Balance 5560K, Focal Length 210mm, slightly cropped.


2140 MST: StarLock OFF.

2148 MST: the eastern sky was brightening from the rising waning gibbous Moon.

2155 MST: viewed Jupiter and three moons, 102X. Then viewed Saturn through a tree, 102X.

2157 MST: LX600 OFF.

Close: Tuesday, 7 July 2020, 2206 MST
Temperature: 84°F
Session Length: 2h 37m
Conditions: Clear

Comments are welcome using Email. Twitter users can use the button below to tweet this report to their followers. Thanks.

Previous report

Cassiopeia Observatory Home Page

Back to Top

Copyright ©2020 Michael L. Weasner /