Targets / Messier M6

Astrophotoguru™ · Butterfly Cluster

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Messier M6

Butterfly Cluster

Open Cluster
Scorpius
Beginner
Angular size
25′
Magnitude
4.2
Best months
May-Aug
Constellation
Scorpius
Catalog IDs
M6
Common aliases
NGC 6405
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Recommended telescopes

Astro-Tech
Astro-Tech AT8RC
1624mm f/8.0 · 203mm aperture
Frames 50% of APS-C FOV
Celestron
Celestron C6 SCT
1500mm f/10.0 · 150mm aperture
Frames 46% of APS-C FOV
Astro-Tech
Astro-Tech AT10RC
2000mm f/8.0 · 254mm aperture
Frames 62% of APS-C FOV
Celestron
Celestron EdgeHD 8
2032mm f/10.0 · 203mm aperture
Frames 63% of APS-C FOV
Meade
Meade LX200 8" ACF
2032mm f/10.0 · 203mm aperture
Frames 63% of APS-C FOV
Celestron
Celestron C8 SCT
2032mm f/10.0 · 203mm aperture
Frames 63% 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

Astro-Tech AT8RC + ZWO ASI2600MC Pro
FOV 0.83° × 0.55°
Scale 0.48″/px
Target fills 75% of frame
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Celestron C6 SCT + ZWO ASI533MC Pro
FOV 0.43° × 0.43°
Scale 0.52″/px
Target fills 96% of frame
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Astro-Tech AT10RC + ZWO ASI533MC Pro
FOV 0.32° × 0.32°
Scale 0.39″/px
Target fills 129% of frame
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Related open clusters

NGC NGC 7789
Caroline's Rose
Messier M37
Open Cluster M37
NGC NGC 2244
Rosette Cluster
Messier M23
Open Cluster M23
Messier M46
Open Cluster M46
Messier M35
Open Cluster M35
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