Messier 25

No dss image available for Messier 25
Aladin viewer for the region around Messier 25
Bode 56, IC 4725, C 1828-192

Type  Open Cluster
Magnitude  4.6
Size  32'
Right Ascension  18h 31'  (2000)
Declination  19° 7' S
Constellation  Sagittarius
Description  Cl, pC
Classification  I 2 p
Observing Notes

Andrew Cooper
Jun 27, 2020    Waikoloa Quarry, HI (map)
8x42mm Nikon Prostaff 3S Binoculars @ 8x
Seeing: 7 Transparency: 7 Moon: 0%

A conspicuous cluster just east of M24, bright, coarse, resolved, centered on a few brighter 6-8th magnitude stars

Andrew Cooper
Jun 27, 2020    Waikoloa Quarry, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 7 Transparency: 7 Moon: 0%

Large! bright! a coarse collection of 6-8th magnitude stars scattered across a 30' area, the central clump is oddly divided into north and south sections by a sparse rift, the magnitude 6.4 U Sgr at the east end of the northern section

Andrew Cooper
Aug 11, 2017    Waikoloa, HI (map)
Hodgepodge w/TV-76mm f/6 APO @ 30x
Seeing: 6 Transparency: 6 Moon: 0%

A large bright cluster, ideal for the 76mm, several sweeps of stars radiate out from the central group which is about 10' across, coarse, the full cluster appears to cover a 25' area, very obvious when sweeping the area at low power

Andrew Cooper
Apr 18, 2010    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 60x
Seeing: 6 Transparency: 7 Moon: 0%

Large! Bright, coarse, around 100+ 7th to 10th magnitude stars arranged in clumps across a 30' area

Andrew Cooper
Jun 28, 1998    Santa Rita Mts., AZ (map)
20cm f/10 SCT

Almost just a thicker patch of the Milky Way but the concentration of bright stars makes it stand out

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)

Coarse and brilliant. Not in G.C.
― Celestial Objects for Common Telescopes, T. W. Webb, 1917

William Herschel
Jul 30, 1783    19 New King Street, Bath (map)

Very large stars and some small ones; I counted 70, and there are many more within no considerable extent.

Charles Messier
Jun 20, 1764    

A cluster of small stars in the neighborhood of the two previous clusters [M23 and M24], between the head & the end of the bow of Sagittarius: the nearest known star to this cluster is 21 Sagittarii, 6th magnitude, according to Flamsteed. The stars of this cluster are seen with difficulty with an ordinary telescope of 3.5-foot; no nebulosity can be seen. Its position has been determined from Mu Sagittarii.
― Connaissance des Temps, 1781
Other Data Sources for Messier 25
Associated objects for Messier 25
Nearby objects for Messier 25

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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Messier 25