Alpheratz (Star)

Color-magnitude diagram
Image of Alpheratz
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
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From Ashburn , Alpheratz is not observable – it will reach its highest point in the sky during daytime and is no higher than 10° above the horizon at dusk.

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Name Alpheratz
Object type Star
Other names
Alpheratz
α-And
Alpha Andromedae
21-And
21 Andromedae
HR 15[1]
HD 358
HIP 677[5]
TYC 1735-3180-1[4]
Position
Right ascension:00h08m23s [3]
Declination:+29°05'26" [3]
Constellation:Andromeda
Magnitude:
Variable
2.06 (V) [3]
2.00 (BT) [2]
2.05 (VT) [2]
Distance:29.7 parsec
97.0 lightyrs [5]
B-V Color (mag):-0.04
Proper motion (speed):213.6 mas/yr[5]
Proper motion (pos ang):139.9°
Derived quantities
Absolute mag (V):-0.31
Visibility from Ashburn

All times shown in Ashburn local time.

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Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EDT

Color scheme