Image Description and Details : This is a two panel mosaic revealing a collection of deep-sky objects straddling the border between Cassiopeia and Cepheus. It is sometimes called The Cosmic Question Mark. The large upper section is NGC 7822; and at its bottom is Sh-170 which provides the “dot” of the question mark. Turbulent rings of dust and gases frozen in time like some fossilized explosion, whose atomic emission is powered by energetic radiation from the central hot stars. Their powerful winds and radiation sculpt and erode the denser pillar shapes and clear out a characteristic cavity light-years across the center of the cosmic cloud. Stars continue to be formed in the pillars seen at the core …..


Telescope: Takahashi FSQ 106edx3
Camera: Zwo 2600mm pro
Filters: Antilla 3nm
Mount: Paramount MX
Sii = 45x4m
Ha = 22x4m
Oiii = 34x4m
Total integration = 6h44m per panel
Observatory – RoboScopes, Spain

Copyright: vikas chander

Image Description and Details : Equipment: ZWO ASI 1600mm, Samyang 135mm @f4, EQ6-r equatorial mount, Svbony 50mm guide scope, ZWO ASI 224mc guide camera, ZWO 8 position EFW, Canon to EOS lens adaptor, Baader 1.25" narrowband filters.

Integration:
HA: 60x 600 @ gain 139, temp -20
Sii: 12x 600 @ gain 139, temp -20
Oiii: 15x 600 @ gain 139, temp -20

Taken over multiple night from my Bortle 5 backgarden in Littlehampton, west Sussex. 21st – 26th October’21.

Copyright: carl gough