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Contains:  M 76, Little Dumbbell, NGC 650
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Messier 76, Little Dumbbell, In memoriam..., 





    
        

            rflinn68
Messier 76, Little Dumbbell, In memoriam...

Messier 76, Little Dumbbell, In memoriam...

Technical card

Resolution: 2754x2271

Dates:Oct. 24, 2017Oct. 25, 2017Oct. 26, 2017

Frames:
Astrodon 5nm H-alpha: 30x600" -15C bin 1x1
Astrodon 5nm OIII: 30x600" bin 1x1
Astrodon Blue Tru-Balance E-series: 10x120" bin 1x1
Astrodon Green Tru-Balance E-series: 12x120" bin 1x1
Astrodon Red Tru-Balance E-series: 18x120" bin 1x1

Integration: 11.3 hours

Darks: ~20

Flats: ~30

Bias: ~300

Avg. Moon age: 5.22 days

Avg. Moon phase: 28.04%

Astrometry.net job: 1802302

RA center: 25.579 degrees

DEC center: 51.579 degrees

Pixel scale: 0.469 arcsec/pixel

Orientation: 182.109 degrees

Field radius: 0.233 degrees

Locations: Little Piney Observatory, Hagarville, Arkansas, United States

Data source: Backyard

Description

In memoriam of Martin Hrdlicka. Martin recently lost his life in a tragic accident. We spent many nights cutting up and laughing while chatting online deep into the night. No matter how low I might be, Martin always knew how to make me laugh. He loved his astronomy/astrophotography, friends and family, and adored his little princess, Viki.

I was shooting this target when I learned of this tragedy. Martin sold me this camera just days before the accident to help fund a new mount he was wanting. I was proud to call Martin a friend of mine. He will be deeply missed.

Some info from Wikipedia.....

Apparent dimensions 2.7 × 1.8 arcmin

The Little Dumbbell Nebula, also known as Messier 76, NGC 650/651, the Barbell Nebula, or the Cork Nebula, is a planetary nebula in the constellation Perseus. It was discovered by Pierre Méchain in 1780 and included in Charles Messier's catalog of comet-like objects as number 76. It was first recognised as a planetary nebula in 1918 by the astronomer Heber Doust Curtis. However, there is some contention to this claim, as Isaac Roberts in 1891 did suggest that M76 might be similar to the Ring Nebula (M57), being instead as seen from the side view. The structure is now classed as a bipolar planetary nebula (BPNe). Distance to M76 is currently estimated as 780 parsecs or 2,500 light years, making the average dimensions about 0.378 pc. (1.23 ly.) across.

The total nebula shines at the apparent magnitude of +10.1 with its central star or planetary nebula nucleus (PNN) at +15.9v (16.1B) magnitude. The UV-light from the PNN is expanding outer layers that form the present nebula, and has the surface temperature of about 88,400 K.The whole planetary nebula is approaching us at −19.1 km.s−1.

The Little Dumbbell Nebula derives its common name from its resemblance to the Dumbbell Nebula (M27) in Vulpecula. It was originally thought to consist of two separate emission nebulae and was thus given two catalog numbers in the NGC 650 and 651. Some consider this object to be one of the faintest and hardest to see objects in Messier's list.

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rflinn68
rflinn68
License: None (All rights reserved)
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  • Messier 76, Little Dumbbell, In memoriam..., 





    
        

            rflinn68
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    Messier 76, Little Dumbbell, In memoriam..., 





    
        

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Messier 76, Little Dumbbell, In memoriam..., 





    
        

            rflinn68