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In Evidence
Other stars in Cepheus
- Alderamin
- Errai
- Alfirk
- ζ Cephei
- η Cephei
- ι Cephei
- δ Cephei
- μ Cephei
- ε Cephei
- θ Cephei
- HR285
- ν Cephei
- Kurhah
- κ Cephei
- π Cephei
- HR7955
- 11 Cephei
- HR8748
- 9 Cephei
- HR8702
- ο Cephei
- 24 Cephei
- HR8383
- 16 Cephei
- HR9013
- λ Cephei
- HR2609
- HR1523
- 31 Cephei
- HR1230
- 19 Cephei
- HR8324
- 6 Cephei
- 30 Cephei
- HR8779
- HR8472
- HR8546
- 20 Cephei
- 18 Cephei
- HR8479
- HR1317
- 7 Cephei
- HR961
- HR1304
- 26 Cephei
- HR8557
- HR881
- HR8474
- ρ2 Cephei
- HR8049
- 12 Cephei
- HR8243
- HR8851
- 14 Cephei
- HR1289
- HR8938
- 4 Cephei
- HR8696
- HR8918
- HR965
- HR240
- HR8281
- HR8119
- HR333
- HR8164
- HR8599
- HR8357
- 25 Cephei
- HR7944
- HR774
- HR8625
- HR7742
- HR8483
- 13 Cephei
- HR8065
- ρ1 Cephei
- HR8952
- HR8844
- HR1107
- HR8375
- HR8099
- HR8506
- HR8736
- HR8112
- HR8388
- HR906
- HR8327
- HR8971
- HR8168
- HR9005
- HR8239
- HR8150
- HR8972
- HR8707
- HR20
- HR7925
- HR8537
- HR572
- HR8043
- HR597
- HR8683
- HR386
- HR8493
- HR8312
- HR8224
- HR1885
- HR8179
- HR8490
- HR8226
- HR8374
- HR8174
- HR7938
- HR8535
- HR8347
- HR8811
- HR8029
- HR306
- HR8808
- HR357
- HR8568
- HR8342
- HR312
- HR8476
- HR7940
- HR8442
- HR8598
- HR55
- HR8395
- HR8677
- HR8361
- HR8473
- HR8867
- HR8434
- HR9038
- HR8133
- HR158
- HR7967
- HR8153
- HR8384
- HR8745
- HR7993
- HR1616
- HR8109
- HR9034
- HR8389
- HR9056
- HR1714
- HR8595
- HR8525
- HR8399
- HR8777
- HR8550
- HR8113
Errai - γ Cephei (gamma Cephei)
Errai, also designated as γ Cephei (gamma Cephei), is a variable giant star in the constellation of Cepheus.
Errai visual magnitude is 3.21. Because of its moderate brightness, Errai should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about Errai:
Errai - γ Cephei (gamma Cephei) is above the horizon from Greenwich, United Kingdom .
Altitude: 50.1°
Azimuth: 19.5°
Direction: North-North-East
Celestial coordinates and finder chart of Errai
Errai is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Errai are provided in the following table:
The simplified sky map below shows the position of Errai in the sky:
Visibility of Errai from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Errai - γ Cephei (gamma Cephei) is circumpolar and transits at 18:42 UTC (altitude: 63.8°)
Digitized Sky Survey image of Errai
The image below is a photograph of Errai from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of Errai is -0.067 arcsec per year in Right Ascension and 0.151 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Errai from the Sun and relative movement
Errai is distant 44.97 light years from the Sun and it is moving towards the Sun at the speed of 42 kilometers per second.
Spectral properties of Errai
Errai belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where Errai is situated in the Hertzsprung–Russell diagram.
