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Hemisphere:  Northern  ·  Contains:  NGC 7023
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Iris in the dust, 


Iris in the dust
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Iris in the dust

Technical card

Imaging telescopes or lenses: Skywatcher ED80

Imaging cameras: ATIK 383L+

Mounts: AZ-EQ6

Guiding telescopes or lenses: Orion thin OAG

Guiding cameras: QHYCCD QHY5

Focal reducers: Skywatcher .85x Focal Reducer & Corrector

Software: Main Sequence Software SGPro

Filters: Baader Blue 36 mm  ·  Baader Red 36 mm  ·  Baader Green 36 mm  ·  Baader Luminance 36 mm

Accessory: DIY Focus controllers

Dates:Oct. 31, 2018

20x300" bin 1x1
Baader Blue 36 mm: 30x300" bin 1x1
Baader Green 36 mm: 20x300" bin 1x1
Baader Luminance 36 mm: 111x600" bin 1x1

Integration: 24.3 hours

Avg. Moon age: 21.93 days

Avg. Moon phase: 52.28%

Basic astrometry details job: 3013558

RA center: 20h 59' 4"

DEC center: +68° 7' 22"

Pixel scale: 2.138 arcsec/pixel

Orientation: 354.413 degrees

Field radius: 1.141 degrees

Resolution: 3000x2400

Locations: Remote observatory, Kiev, Ukraine

Data source: Own remote observatory

Remote source: Non-commercial independent facility


The Iris Nebula, most frequently referred to by NGC 7023. It is located in the constellation of Cepheus. NGC 7023 is a combination of a reflection nebula and an open cluster of stars. The shape of the reflection nebula glowing in blue resembles the plant Iris, hence the name of the object. The distance of the complex is about 1300-1400 light-years from Earth, the reflection part has a diameter of about 6 light-years. The blue light which is being reflected by the nebula is coming from the young hot star at the center of the bubble. The bubble was created by the star itself, sweeping the interstellar dust and gases out from its vicinity by its intense stellar winds. The dust cloud consists of very fine dust of solid particles, gases and simple molecules. Although the density of the cloud is rather low, it is still opaque in the visible wavelengths because of its vast proportions. It blocks the light coming from stars and other kinds of objects behind it.



License: Attribution Creative Commons

Sky plot

Sky plot


Iris in the dust,