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(sólo visible con los mayores telescopios) y
no de una estructura de gas de forma esfé-
rica o elipsoide. Si se pudiese contemplar la
nebulosa del Anillo desde un plano lateral,
podría parecerse a la nebulosa Dumbbell (M
27). Cuando miramos a ese objeto miramos
exactamente al polo de la nebulosa.
Nebulosa Dumbbell en la constelación
Vulpecula (M 27)
M 27 en la constelación Vulpecula (Fig. 22)
Ascensión recta: 19:59,6 (horas: minutos)
Declinación: +22:43 (grados: minutos de arco)
Distancia: 1250 años luz
La nebulosa Dumbbell (M 27) en la constel-
ación Vulpecula fue la primera nebulosa pla-
netaria que se descubrió. Charles Messier
descubrió el 12 de julio de 1764 esta nueva
y fascinante clase de objetos. Vemos este
objeto casi exactamente desde su plano ecu-
atorial. Si se pudiese ver la nebulosa Dumb-
bell desde uno de sus polos es probable que
mostrase una forma de anillo y se pareciera al
aspecto conocemos de la nebulosa del Anillo
M 57. Este objeto ya se puede ver bien en
condiciones más o menos buenas de tiempo
con pequeños aumentos.
f=20 mm f=12 mm f=4 mm
La Luna
Nebulosa de
Orión (M 42)
Nebulosa del Anillo
en la constelación
de Lira (M 57)
Nebulosa Dumb-
bell en la constel-
ación Vulpecula
(M 27)
2!
2@
2)
1(
74


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