designed by Lluís Romero Ventura
The Earth astrosirius@astrosirius.org

NGC 7223 THE IRIS NEBULA

The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +7 star, SAO 19158. It shines at magnitude +6.8. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei (Alphirk). It lies 1,300 light-years away and is six light-years across.

NGC 7223 THE IRIS NEBULA

Place: Ager-Lleida-Spain SQM: 21.3 - 21.6 Dates: 27-29-30 SEP / 2-4-5 OCT Details Telescope: GSO RC14 Truss Mount: ASA DDM85 Camera: Moravian G3-11000 Focuser: Feather Touch 3 Kit Boss II Flattener: TS 2.5 Filters: Astrodon LRGB Gen2 I-Series True-Balance Exposure: L:37x600 sec bin1 RGB: 19x600 sec bin2 Processing: Pixinsight & Photoshop CC Software: MaximDL, Sequence,Autoslew Control Remote: Talon6

Nebula

& Dust