τ-CMa (Star)

Image of τ-CMa
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
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From South El Monte , τ-CMa is not observable – it will reach its highest point in the sky during daytime and is 40° below the horizon at dawn.

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Name τ-CMa
Object type Star
Other names
τ-CMa
Tau Canis Majoris
30-CMa
30 Canis Majoris
HR 2782[1]
HD 57061
NSV 3528
HIP 35415[5]
TYC 6541-4204-1[4]
Gaia EDR3- 5616537017987940736[6]
Position
Right ascension:07h18m42s [6]
Declination:−24°57'15" [6]
Constellation:Canis Major
Magnitude:
Variable		4.40 (V) [3]
4.18 (BT) [2]
4.37 (VT) [2]
4.28 (G) [6]
4.26 (BP) [6]
4.46 (RP) [6]
B-V Color (mag):-0.17
Proper motion (speed):1.9 mas/yr[1]
Proper motion (pos ang):254.7°
Sources
Visibility from South El Monte

All times shown in South El Monte local time.

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South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PDT

Color scheme


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Last updated: 11 Jul 2025, 18:16 UTC
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