Alphard (Star)

Color-magnitude diagram
Image of Alphard
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
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From Cambridge , Alphard is not observable – it will reach its highest point in the sky during daytime and is 15° below the horizon at dawn.

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Name Alphard
Object Type Star
Other Names
α-Hya
30-Hya
HR 3748
HD 81797
NSV 4496
HIP 46390
TYC 5460-1592-1
Position
Constellation:Hydra
Magnitude:
Variable
1.98 (V) [1]
3.88 (BT) [1]
2.14 (VT) [1]
B-V Color (mag):1.48
Right ascension:09h27m35s [1]
Declination:-08°39'30" [1]
Distance:55.3 parsec
180.2 lightyrs [2]
Proper motion (speed):37.6 mas/yr [2]
Proper motion (pos ang):336.1°
Derived Quantities
Absolute mag (V):-1.73

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

Color scheme