Boötes III

Galaxy

GalaxygalaxyQ45975

Constellation: Boötes
1
Sources
1.Stated in VizieR
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Distance from Earth: 153,000 ly
, 0.05 Mpc
1
Sources
1.Stated in The Local Tully-Fisher relation for dwarf galaxies
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Apparent magnitude: 12.6
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Sources
1.Stated in The observed properties of dwarf galaxies in and around the Local Group
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Galaxy morphological type: dSph?
1
Sources
1.Stated in The observed properties of dwarf galaxies in and around the Local Group
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Right ascension: 209.2808 degree
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Sources
1.Stated in Star formation properties in the Local Volume galaxies via H{alpha} and far-ultraviolet fluxes
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Declination: 26.775 degree
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Sources
1.Stated in Star formation properties in the Local Volume galaxies via H{alpha} and far-ultraviolet fluxes
View statement on Wikidata ↗

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Boötes III is an overdensity in the Milky Way's halo, which may be a disrupted dwarf spheroidal galaxy. It is situated in the constellation Boötes and was discovered in 2009 in the data obtained by the Sloan Digital Sky Survey. The galaxy is located at the distance of about 46 kpc from the Sun and moves away from it at the speed of about 200 km/s. It has an elongated shape with the radius of about 0.5 kpc. The large size and an irregular shape may indicate that Boötes III in a transitional phase between a gravitationally bound galaxy and completely unbound system.

Overview

All data

15 statements · 73% with external sources · numbers in brackets are citations

Orbits: Milky Way
Discovered: 2009
Part of: Local Group
1
Sources
1.Stated in SIMBAD
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Epoch: J2000.0
1
Sources
1.Stated in Star formation properties in the Local Volume galaxies via H{alpha} and far-ultraviolet fluxes
View statement on Wikidata ↗
Radial velocity: 197.5 kilometre per second
1
Sources
1.Stated in The observed properties of dwarf galaxies in and around the Local Group
View statement on Wikidata ↗

On other databases

2 identifiers linking Boötes III across the web's reference databases

Data quality

statements

73%

externally sourced

Source last edited October 12, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Boötes III (Q45975). Retrieved from https://aidb.si/e/bootes-iii-Q45975