The Butterfly Cluster (Open Cluster)

Image of Butterfly Cluster
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 15 arcminutes across.
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From Fairfield , Butterfly Cluster is not readily observable since it lies so far south that it will never rise more than 16° above the horizon.

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Name Butterfly Cluster
Object Type Open Cluster
Other Names
M 6
NGC 6405
Cr 341
Mel 178
Magnitude:4.20 (V) [3]
4.48 (B) [2]
B-V Color (mag):0.28
Right ascension:17h40m [2]
Declination:-32°15' [2]
Distance:487.0 parsec
1587.6 lightyrs [1]
Derived Quantities
Absolute mag (V):-4.24
16 Jun 2020  –  M6 is well placed
16 Jun 2021  –  M6 is well placed
17 Jun 2022  –  M6 is well placed
17 Jun 2023  –  M6 is well placed
16 Jun 2024  –  M6 is well placed
16 Jun 2025  –  M6 is well placed
17 Jun 2026  –  M6 is well placed
17 Jun 2027  –  M6 is well placed




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