NGC281 - la nebulosa Pacman - a photo on Flickriver

NGC 281 è una nebulosa a emissione visibile nella costellazione di Cassiopea; circonda l'ammasso aperto IC 1590. Talvolta è chiamata Nebulosa Pacman.
Si individua 1,5 gradi ad est della stella α Cassiopeiae; occorrono strumenti potenti per poter individuare la nebulosa, che sicuramente è l'oggetto più importante, dato che l'ammasso ad essa associato è formato da pochi astri e dominato da una stella doppia di ottava magnitudine. La nebulosa appare solcata nettamente da una vena scura, che la attraversa in senso est-ovest; perpendicolare a questa se ne individua un'altra, rivolta verso sud: viene così a formarsi una "T" che segna profondamente tutto l'oggetto.
... more @ it.wikipedia.org/wiki/NGC_281

www.astrobin.com/316813/

Telescopio di acquisizione: Tecnosky APO Triplet 130/910mm Type II
Camera di acquisizione: ZWO Optical ASI1600MM-Cool
Montatura: Sky-Watcher EQ6 Pro
Telescopio o obiettivio di guida: Tecnosky 80/600 acromatico
Camera di guida: QHYCCD q5L-II-C
Riduttore di focale: APM-Riccardi Riccardi 0.75x reducer/flattener
Software: PixInsight, ESA/ESO/NASA FITS Liberator 3.0
Filtri: ZWO LRGB 31.8 filters, Baader Planetarium H-Alpha 2" 7nm
Accessorio: ZWO EFWmini (5 x 1.25″or 5 x 31mm)
Date: 14 ottobre 2017, 15 ottobre 2017
Pose:
ZWO LRGB 31.8 filters: 55x180" (gain: 139.00) -22C bin 1x1
Baader Planetarium H 1.25", Ha 7nm: 20x300" (gain: 139.00) -22C bin 1x1
Integrazione: 4.4 ore
Temperatura: 11.00
Luoghi: Parco naturale del Monte Beigua, Veirera (SV), Savona, Italia

Some rights reserved

Taken in: Italia / Liguria / Veirera (show map)

Taken on: October 17, 2017

Tags:

astronomy

astrophotography

cosmo

nebula

ngc281

pacman

stars

starry

stelle

astronomia

astrofotografia

coldmos

xamad

2017

Ha+LRGB

sky

night

notte

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