MJS Astro

02/13/2026

Horsehead Nebula

Fun Fact : The nebula was discovered by Scottish astronomer Williamina Fleming in 1888 on a photographic plate taken at the Harvard College Observatory.

300secs x 31 - 2.5 Hours
Askar 71F - 490mm at f/6.9
ZWO 533MC Pro at -10C°
SV220 Filter
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI
www.mjsastro.com

01/20/2026

1/20

12/29/2025

12/20/2025

The Pinwheel Galaxy (M101)

300sec x 65 - 5.4 Hours
Askar 71F - 490mm at f/6.9
ZWO 533MC Pro at -10C°
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI

12/20/2025

Rosette Nebula

300sec x 36 - 3 Hours
Askar 71F - 490mm at f/6.9
ZWO 533MC Pro at -10C°
SVBONY SV220 Filter
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI
40 Darks / 80 Bias & Flats
Bortle 3

12/18/2025

The Bubble Nebula and M52, the Scorpion Cluster.

300 seconds x 60 - 5 Hours
Askar 71F - 490mm at f/6.9
SVBONY SV220
ZWO 533MC Pro at -10C°
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI

12/18/2025

Orion and Running Man Nebulas

300sec x 12 - 1 Hour
10sec x 150 - 25 Min
Askar 71F - 490mm at f/6.9
ZWO 533MC Pro at -10C°
SVBONY SV220 Filter
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI

12/18/2025

M51 - Whirlpool Galaxy

300sec x 66 - 5.5 Hours
Askar 71F - 490mm at f/6.9
SVBONY SV220
ZWO 533MC Pro at -10C°
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI

12/17/2025

M13, the Great Globular Cluster in the constellation Hercules. NGC 6207 is also in the frame.

About 145 light-years in diameter, M13 is composed of several hundred thousand stars, with estimates varying from around 300,000 to over half a million.

300sec x 36 - 3 Hours
Askar 71F - 490mm at f/6.9
SVBONY UV/IR Cut Filter
ZWO 533MC Pro at -10C°
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI

12/17/2025

The Iris Nebula is a bright reflection nebula in the constellation Cepheus. Located approximately 1,300 light-years away, it gets its name from its resemblance to an iris flower and spans about 6 light-years across.

300 seconds x 60 - 5 Hours
Askar 71F - 490mm at f/6.9
No Filter
ZWO 533MC Pro at -10C°
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI

12/17/2025

Pelican Nebula

300 seconds x 43 - 3.5 Hours
Askar 71F - 490mm at f/6.9
SVBONY SV220
ZWO 533MC Pro at -10C°
ZWO ASIAIR Pro
ZWO ASI120MM Mini Guide Cam
ZWO 30mm ƒ/4 Mini Guide Scope
Star Adventure GTI