μ-Sgr (Star)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.

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From Cambridge , μ-Sgr is visible in the dawn sky, rising at 23:50 (EDT) and reaching an altitude of 26° above the southern horizon before fading from view as dawn breaks at around 04:27.

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Name μ-Sgr

Object type Star

Other names

μ-Sgr
Mu Sagittarii
13-Sgr
13 Sagittarii
HR 6812^[1]
HD 166937
HIP 89341^[5]
TYC 6276-3093-1^[4]
Gaia EDR3- 4093933487636355968^[6]

Position

Right ascension:	18^h13^m45^s ^[6]
Declination:	−21°03'31" ^[6]
Constellation:	Sagittarius
Magnitude: Variable	3.84 (V) ^[3] 4.06 (BT) ^[2] 3.86 (VT) ^[2] 3.76 (G) ^[6] 3.91 (BP) ^[6] 3.45 (RP) ^[6]
B-V Color (mag):	0.18
Proper motion (speed):	0.6 mas/yr^[1]
Proper motion (pos ang):	148.0°

Sources

^[1]	Bright Star Catalogue, 5th Revised Ed. (Hoffleit et al. 1991)

^[2]	The Hipparcos Catalogue (ESA 1997)

^[3]	The Tycho Catalogue (ESA 1997)

^[4]	The Tycho-2 Catalogue (Hog et al. 2000)

^[5]	Hipparcos, the new reduction of the raw data (van Leeuwen 2007)

^[6]	Gaia EDR3 (Gaia Collaboration 2020)

Visibility from Cambridge

All times shown in Cambridge local time.

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

Color scheme

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Last updated: 27 Apr 2025, 18:14 UTC
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