Mu Cephei
Overlaid DSS image of Mu Cephei, 60' x 60' with north at top and west to the right
Aladin viewer for the region around Mu Cephei
Herschel's Garnet Star, Mu Cep, μ Cep
BD+58 2316, HD 206936, HR 8316, WDS J21435+5847A, SAO 33693, GSC 03979-01616, HIP 107259
BD+58 2316, HD 206936, HR 8316, WDS J21435+5847A, SAO 33693, GSC 03979-01616, HIP 107259
| Type | Variable Star |
|---|---|
| Magnitude | 4.08 (avg.) | Right Ascension | 21h 43' 30.5" (2000) |
| Declination | 58° 46' 48" N |
| Constellation | Cepheus |
| Classification | M2-Ia |
Observing Notes
Andrew Cooper
Jul 18, 2023 Oregon Star Party, Ochoco Mts, OR (map)
25cm f/4.5 Newtonian, Holoholo @ 71x
Seeing: 7 Transparency: 7 Moon: 0%
Brilliant rich orange, a 12th magnitude 20" companion not visible against the glare of the 4th magnitude primary, located in rich galactic starfield
Current AAVSO data puts Mu Cep at peak brightness of about magnitude 3.8
Andrew Cooper
Sep 2, 2021 Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 175x
Seeing: 5 Transparency: 6 Moon: 0%
Brilliant rich orange, no companion noted
Andrew Cooper
Nov 2, 2019 Kaʻohe, Mauna Kea, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 7 Transparency: 6 Moon: 39%
A bright star, visible to the unaided eye, bright orange
Steve Coe
Herschel's Garnet Star; famous; 3.7-5m; 12m comp* @ 40sec― SAC Red Star Database
Other Data Sources for Mu Cephei
Nearby objects for Mu Cephei
10 objects found within 120'
| 12 Cephei | Barnard 161 | Barnard 366 |
| Barnard 367 | Cephus OB2 Association | Collinder 439 |
| Elephant Trunk Nebula | HD 206267 | |
| IC 1396 |
Credits...
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
A complete list of credits and sources can be found on the about page
Mu Cephei