Graff's Cluster (IC4756)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 24 arcminutes across.
Finder chart
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From Ashburn , Graff's Cluster is visible in the morning sky, becoming accessible around 23:10, when it reaches an altitude of 19° above your eastern horizon. It will then reach its highest point in the sky at 03:49, 56° above your southern horizon. It will be lost to dawn twilight around 04:33, 54° above your southern horizon.
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|
Name
Graff's Cluster (IC4756)
|
Object type
Open cluster
|
Position
| 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 |
Sources
Visibility from Ashburn
All times shown in Ashburn local time.
Events
| 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 |
| 01 Jul 2029 | – IC4756 is well placed |