M27 Dumbbell Nebula

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Astrophotography

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Atronomia3 View gallery (34 photos)

M27 Dumbbell Nebula sent on September 18, 2023 (19:45) by Mauror.. 6 comments, 305 views.

La Nebulosa Manubrio (nota anche come Nebulosa Dumbbell, dalla corrispondente denominazione inglese) o con le sigle di catalogo M 27 e NGC 6853) è una celebre e brillante nebulosa planetaria visibile nella costellazione della Volpetta. La nebulosa dista circa 1360 anni luce dalla Terra, è di magnitudine apparente 7,4, ha un diametro apparente di circa 8 arcominuti e un'età stimata di 9800 anni; la sua forma ricorda quella di uno sferoide prolato ed è vista lungo la linea prospettica del piano equatoriale. Nel 1992 è stato determinato che il tasso di espansione sul piano del cielo di questa nebulosa non è superiore ai 2,3' al secolo: in conseguenza a ciò, può essere determinato un limite di età massima che si aggira sui 14.600 anni. Nel 1970 fu invece calcolata la velocità di espansione reale, pari a 31 km/s. Dato che l'asse maggiore ha un raggio di 1,01 anni luce, l'età cinematica della nebulosa sarebbe di 9800 anni.[7][8] L 900secX12 Bin1 and 60secX5 Bin1 R 600secX10 Bin2 and 60secX5 Bin1 G 600secX10 Bin2 and 60secX5 Bin1 B 600secX10 Bin2 and 60secX5 Bin1 Ha 1800secX25 Bin2 0III 1800secX25 Bin2 Totale : 30 ore Astrografo Ritchey–Chrétien GSO 10" Truss V3

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12 persons like it: -zeppo-, Alberto Dall'oglio, Aleziggio, Anto77, Arvina, Gp70, Juza, Marzio Bambini, NeveNera, Pierluigi Fogliotti, Rial, Zipablo

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-zeppo-

sent on September 18, 2023 (19:47) | This comment has been automatically translated (show/hide original)

Crazy signal and detail! :-or

Mauror.

sent on September 18, 2023 (19:49) | This comment has been automatically translated (show/hide original)

Thanks zeppo ;-)

Gp70	sent on September 19, 2023 (10:40) \| This comment has been automatically translated (show/hide original) One of the best.... good! Una delle migliori....bravo!

Anto77

sent on September 19, 2023 (12:09) | This comment has been automatically translated (show/hide original)

Congratulations Mauro, excellent image

Mauror.

sent on September 19, 2023 (18:00) | This comment has been automatically translated (show/hide original)

@Gp70
Hello Giampi ;-)

Mauror.

sent on September 19, 2023 (18:01) | This comment has been automatically translated (show/hide original)

@Anto77
thanks Anto !

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