Bode's Galaxy

Observed:  Points: 20

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Current Info for Observer

as of 06/13/2024 9:05 p.m.

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General Info

TypeSpiral Galaxy
ConstellationUrsa Major
Right ascension9h55'32.900''
Declination+69°4'55''
Magnitude6.900
Distance12,000,000ly
Size21 arc min
Catalog Designations NGC3031, M81
Discovered 1774 Johann Bode

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Nom de l'objet M81 Date 2024-05-19 Heure 23:45 Nom du lieu Mirabel, Québec, Canada Durée (min.) 16 Longueur de la pause (s) 10 Coordonnés du lieu 45,73 Magnitude qualité du ciel 20,23 Bortle 5 Pourcentage lunaire 89 Nuages 20 Seeing 40 Transparence 30 Vent 0 Température 18 Température ressentit 20 Point de rosée 15 Humidité 81 Instrument Seestar S50 Filtre Aucun Type d'objet Galaxie Dimension Moyenne Diamètre estimé Environ 0.5° (le champ de vision du Seestar S50 étant de 0.8°) Bords de l'objet Nets Forme de l'objet Ovale Couleur de l'objet Incolore (sous un ciel nocturne typique et avec un télescope amateur, M81 apparaît souvent comme une zone grise sans couleur distincte) Densité Moyenne Nombre d'étoiles estimé Non applicable pour une galaxie Apparence Indice de spirale, centre plus brillant et présence de spirales invisibles. Éclat global "Moyenne " Appréciation L'observation de M81 avec le Seestar S50 a été particulièrement agréable en raison de la clarté du ciel et de la faible pollution lumineuse à Mirabel. La galaxie, bien que relativement incolore, présentait une belle structure spirale avec un noyau brillant. Le contraste avec le fond du ciel nocturne a permis de bien distinguer ses caractéristiques principales. Un objet à observer de nouveau sous de bonnes conditions pour mieux apprécier les détails fins des bras spiraux.

Bode's Galaxy

Celestron Omni XLT 150
20 points

Bode's galaxy was a much more visible object versus M82. More round and less distinct, though.

Chased a few DSOs prior to the moon rise. Bode's Galaxy/Cigar Galaxy are once again high enough to clear the treeline from my observing site. Bode's galaxy is a nice faint face-on galaxy, but without any details in my suburban site. The Cigar galaxy shows mottling at higher magnification even in less than dark skies.

Both M81/82 fit into a single wide FOV eyepiece for a nice site on a chilly evening.

Bode's Galaxy

Orion 10'' SkyQuest dobsonian
20 points

I knew M81 and M82 were good targets, but despite them never setting at my latitude, I had never tried to observe them until now.

I began the search at twilight while the sky was still fairly bright. I scanned the area above the line that connects Dubhe and the adjacent star that makes up the bear's "head" (Ursa Major) for any hints of smudges. No such luck. I then decided just to bring out the scope and put my wide FOV eyepiece in. After a few minutes 2 not so faint smudges showed up in my field of view: Bode's Galaxy and the Cigar Galaxy.

Bode's galaxy appears as a fairly high magnitude face on galaxy. No features visible. Scarce background stars. Averted vision shows a brighter core surrounded by diffuse light.

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