Graff's Cluster (Open Cluster)

Image of Graff's Cluster
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 24 arcminutes across.
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From Seattle , Graff's Cluster is visible all night. It will become visible around 23:01 (PDT), 34° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:56, 47° above your southern horizon. It will be lost to dawn twilight around 03:21, 43° above your south-western horizon.

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Name Graff's Cluster
Object Type Open Cluster
Other Names
IC 4756[2]
Cr 386[3]
Mel 210[4]
Constellation:Serpens Cauda
Magnitude:4.60 (V) [4]
4.96 (B) [2]
B-V Color (mag):0.36
Right ascension:18h38m [2]
Declination:+05°27' [2]
Distance:484.0 parsec
1577.8 lightyrs [1]
Derived Quantities
Absolute mag (V):-3.82
Visibility from Seattle

All times shown in Seattle local time.

01 Jul 2021  –  IC4756 is well placed
02 Jul 2022  –  IC4756 is well placed
02 Jul 2023  –  IC4756 is well placed
01 Jul 2024  –  IC4756 is well placed
01 Jul 2025  –  IC4756 is well placed
01 Jul 2026  –  IC4756 is well placed
02 Jul 2027  –  IC4756 is well placed
01 Jul 2028  –  IC4756 is well placed






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