Targets / NGC NGC 7023

Astrophotoguru™ · Iris Nebula

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NGC NGC 7023

Iris Nebula

Reflection Nebula
Cepheus
Beginner

Blue reflection nebula in dark dust field.

Angular size
18′
Magnitude
6.8
Best months
Jul-Nov
Constellation
Cepheus
Catalog IDs
NGC 7023
Common aliases
Caldwell 4
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Recommended telescopes

Celestron
Celestron EdgeHD 9.25
2350mm f/10.0 · 235mm aperture
Frames 52% of APS-C FOV
Celestron
Celestron C9.25 SCT
2350mm f/10.0 · 235mm aperture
Frames 52% of APS-C FOV
Takahashi
Takahashi Mewlon-210
2415mm f/11.5 · 210mm aperture
Frames 54% of APS-C FOV
Astro-Tech
Astro-Tech AT12RC
2432mm f/8.0 · 305mm aperture
Frames 54% of APS-C FOV
Celestron
Celestron EdgeHD 8
2032mm f/10.0 · 203mm aperture
Frames 45% of APS-C FOV
Meade
Meade LX200 8" ACF
2032mm f/10.0 · 203mm aperture
Frames 45% of APS-C FOV

Recommended cameras

ZWO
ZWO ASI2600MC Pro
3.76µm pixels · cooled
ZWO
ZWO ASI2600MM Pro
3.76µm pixels · cooled
ZWO
ZWO ASI6200MC Pro
3.76µm pixels · cooled
ZWO
ZWO ASI6200MM Pro
3.76µm pixels · cooled
ZWO
ZWO ASI533MC Pro
3.76µm pixels · cooled
ZWO
ZWO ASI533MM Pro
3.76µm pixels · cooled

Example framing

Celestron EdgeHD 9.25 + ZWO ASI2600MC Pro
FOV 0.57° × 0.38°
Scale 0.33″/px
Target fills 78% of frame
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Celestron C9.25 SCT + ZWO ASI533MC Pro
FOV 0.28° × 0.28°
Scale 0.33″/px
Target fills 109% of frame
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Takahashi Mewlon-210 + ZWO ASI533MC Pro
FOV 0.27° × 0.27°
Scale 0.32″/px
Target fills 112% of frame
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Related reflection nebulas

NGC NGC 1977
Running Man Nebula
NGC NGC 2170
Angel Nebula
NGC NGC 6726
Corona Australis Nebula
NGC NGC 1333
Reflection Nebula NGC 1333
Messier M78
Reflection Nebula M78
NGC NGC 6559
Reflection Nebula NGC 6559
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