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Cl Melotte 25 (2,943 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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Cl Melotte 25, Cl Collinder 50, C 0424+157, Ocl 456.0, Caldwell 41, Hyades

RA: 04h 26m 54s
Dec: +15° 52′ 0″

Con: Taurus
Ch: MSA:185, U2:178, SA:11

Ref: SIMBAD, Collinder (1931), DAML02, Archinal&Hynes (2003)

(reference key)

Type: open cluster, 23m

Mag: B=?, V=0.5

Size: 330′
PA: ?

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Sketches  (2)

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Photos  (1)

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Published comments


Trumpler (Lick Obs. Bulletin, Vol 14, No 420) gives the diameter as 400' and the class as 2 3 m.


"cluster, coarse, well known cluster of bright stars, not given in the NGC."

Bailey, S.I. (19xx) A catalogue of bright stars and nebulae. Ann.Harv.Coll.Obs., 60(8), 199.

Remarks, p.217: "A widely scattered cluster consisting of a few bright stars, including alpha Tau, mag 1.06.."

Modern observations

Harrington, Phil

Harrington notes that this "cluster marks the head of Taurus. The unaided eye sees six stars in the shape of a V, with brilliant Aldebaran forming the Bull's angry orange-red eye . . . Although much looser than the Pleiades, the Hyades ranks as one of the finest winter clusters. It is a glorious sight through low-power binoculars and finderscopes, since its stars are scattered across 5 or 6 degrees of sky. Of the several hundred cluster members, about 130 are brighter than 9th mag and visible in 7-power glasses. . . . . Several of the group's other stars form attractive double and multiple systems."

Steve Coe

Steve CoeSACNEWS On-Line for January 1996: "The Hyades are also Mel 25. They are extremely bright, extremely large, not compressed at 30X in the 8" f/4.5 RFT. This huge cluster does not quite fit in any telescope I have ever used. My best view of the Hyades is in my 10X50 binoculars. There is a nice wide pair on one side of the ``V'' and several more pairs are evident in any telescope. The Hyades is one of those places in the sky where it is just plain fun to put a widest field eyepiece in the scope and scan the entire area. There are lots of asterisms and binary stars to delight the casual scanning eye."

Rick Raasch

Rick Raasch writes in "The Focal Point", Volume 6, No. 3 (1993) "The Hyades This distinctive star cluster marks the head of Taurus the Bull. It is one of the closest open clusters, and therefore is large, bright, and easily seen. Binoculars or a rich field telescopes show many bright stars, including the brightest star in Taurus (Aldebaran), which not a true cluster member, but rather a foreground star."

Donald J. Ware

Donald J. Ware:"This distinctive star cluster marks the head of Taurus the Bull. It is one of the closest open clusters, and therefore is large, bright, and easily seen. Binoculars or a rich field telescopes show many bright stars, including the brightest star in Taurus (Aldebaran), which not a true cluster member, but rather a foreground star."

(IAAC) Lew Gramer


Observer: Lew Gramer

Your skills: Intermediate (some years)

Date/time of observation: 1998-02-19/20 03:00 UT

Location of site: Medford, MA, USA (Lat 42oN, Elev 5m)

Site classification: Suburban

Sky darkness: 5.6(Limiting magnitude)

Seeing: 7(1-10 Seeing Scale (10 best))

Moon presence: None - moon not in sky

Instrument: 7x50 handheld binoculars

Magnification: 7x

Filter(s): None

What a magnificent sight in binoculars this object is! Using one of those infuriating "unexpected clearings" we have in New England, I rushed out to the backyard with just the binoculars, to begin work on my AL "Binocular Deep Sky" observing list. First up tonight, and at the top of any binocular list, the bovine Hyades! The first thing to note was a pretty trio of mag. 7-8 stars lying S of baleful alpha Tau (Aldebaran), which I'd never noticed before. This seemed a good S border for my view tonight, while to the NW, faint streamers of stars mags. 8-9 stretched for a good 4o, forming another border. In between, I could count some 65 stars with averted vision and steady hands! Seven or eight pretty binocular pairs were scattered fairly evenly around this area. But the cluster as a whole presented very much the same lopsided impression - clustering heavily to the S and SW - which unaided eyes will give from a fairly dark site. WOW!

Contemporary observations

Andre de la Porte

2012 January 01, Sunday

Location: Riviera, Pretoria

Time: 21:30-21:40

Telescope: Orion 10 In Dob

Limiting magnitude: 4.5

Sky conditions: Good seeing and transparency

Eyepiece: Finder scope

Magnification: 8

Attractive grouping of stars in a �Christmas tree� shape. Aldebaran�s reddish colour is clearly visible. There are also some geometric shapes such as triangles and a trapezium.

Pierre de Villiers

2016 February 04, Thursday

Location: Bonnievale SSP

Equipment: Naked eye + Canon 12x36 IS binocs, 5-deg fov

Conspicuous V-shaped open cluster with red Aldebaran anchoring the NW tip. About 70 stars visible in 11-degrees field of view (7x35 binocs). m = 1; size 6-deg.

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

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The Caldwell list

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