M3 = NGC5272 ( 13h 42.2m +28°23´, 6.4 mag )
This globular cluster in Canes Venatici was discovered by Messier on May 3, 1764. It is about 32,000 ly away and has diameter of about 220 ly. It is estimated to contain 500,000 stars.
The Leica M3 was a 35 mm rangefinder camera by Leica Camera AG, introduced in 1954. It was a new starting point for Leitz, which until then had only produced screw-mount Leica cameras that were incremental improvements to its original Leica ....
M3 (globular cluster)
M51 The Whirlpool Galaxy (spiral galaxy)
M63 The Sunflower Galaxy (spiral galaxy)
M94 (spiral galaxy)
M106 (spiral galaxy) ...
M3
0.34
Cu I (see the line at 5105) appears in early F-type stars and intensifies toward later types. A positive luminosity effect exists.
M3.0 V
9.17
* In some cases the Luminosity class is not known, while in other cases, the spectral type is not known - that is why this column is incomplete.
M3
Through this warm electricity I will give you bark branches and leaves curling upward into a safe sky
Astronomy ...
M3 (NGC 5272) is a wonderful globular cluster found roughly halfway between Cor Caroli and Arcturus (in Bootes). Considered one of the finest globular clusters in the entire heavens, you'll need a large scope to resolve its individual stars.
PRB M3 minePRBO Conservation SciencePRC (disambiguation)
PRCAPRDPREÅ EVO VALLEY
Prešeren DayPrešeren SquarePreševo ...
L ∼ M3.5
and substituting for L, we have the expression for main sequence lifetime in terms of stellar mass:
tMS ∼ M-2.5 ...
Alshain B is a red M3 dwarf. This star appears to be of 12th magnitude. From the spectral type, the star would have 40% of the diameter of the sun and an effective temperature of 3100 K. The dwarf would have about 1.
Gamma Crucis is an M3.5 III star, a red giant. Using its spectral and luminosity classes we can place it where the red circle is on the HR diagram. Reading across to the vertical axis this corresponds to an absolute magnitude of about -0.8.
5 -36 45 42 M3.5III 3.11 1.56 7623 theta SGR 19 59 44.1 -35 16 35 B3IV 4.37 -0.15 7624 theta SGR 19 59 51.2 -34 41 53 Am: 5.30 0.17 7581 iota SGR 19 55 15.5 -41 52 6 K0II-III 4.13 1.08 7779 kappa SGR 20 22 27.4 -42 2 59 A0V 5.59 0.
" Propus is a third magnitude (3.23) grand red giant star, one of the rather few bright cool (3600 Kelvin) class M (M3) stars in the naked-eye sky, its orange-red color rather obvious through binoculars.
One planet called "Gliese 581c" orbits in the life zone of an M3-type star, Gliese 581 about 20.4 light years from us. Gliese 581 has a luminosity = 0.013 solar luminosities (even though it is a cooler spectral type than Kapteyn's star).
BD-05 5715 is a red dwarf star of spectral and luminosity type M3.5 V. This star has been estimated to have around 49 +/- 5 percent of Sol's mass (Butler et al, 2006; Delfosse et al, 2000; and Henry and McCarthy, 1993), ...
Thus, M3 corresponds to a flux of 3 {times} 10{sup -5} w/m at the Earth. This index is not linear in flare energy since it measures only the peak, not the total.
8 are clearly visible in this H"R diagram (a) of an old star cluster"the globular cluster M3.
These include globular cluster M3 or NGC 5272, a large cluster that is one of the brightest of its class, lying near the border with Bootes and Coma Berenices, M51 or the Whirlpool Nebula, which is in fact a pair of spiral galaxies, ...
An extremely sensitive imaging spectrometer, M3 detects the presence of water by soaking up the signature electromagnetic radiation emitted by minerals on or just below the surface.
Located in the constellation Canes Venatici, M3 is a tight cluster of almost 500,000 stars. This cluster is located approximately 30,000 light-years from Earth. It contains about 170 faint variable stars, which is more than any other globular cluster.
The tidal radius of M3 is about 38 arc minutes.
Mass segregation and luminosity ...
Canes Venatici contains a globular cluster of stars, M3, and a beautiful spiral galaxy, M51, called the Whirlpool. M51 was the first galaxy in which spiral form was noticed, by the Irish astronomer Lord Rosse in 1845.
5 power: L ~ M3.5. This relationship was derived from the observations of the masses of various types of main sequence stars, but it has also been demonstrated by the calculation of stellar models of different massed zero age main sequence stars.
These chains are bonded to octahedral strips consisting of three regular octahedral sites (M1, M2, M3) and one larger 6- to 8-fold site (M4). In addition there is an even larger 10- to 12-fold A site that is usually empty.
The Whirlpool Nebula (M51), the Sab galaxy (M94) and the globular cluster M3 (magnitude 6) can be found in Canis Venatici. The Canes Venaticids occurs from January 13 - January 30.
Notable Features: Canes Venatici contains some truly impressive objects that belie the constellation's modest façade: Whirlpool Galaxy M51, Sunflower Galaxy M63, Spiral Galaxy M106and globular cluster M3.
shown above spans more than a nine hour period from 12:07 to 21:20 Universal Time (UT), (7:07am to 4:20pm central daylight savings time). The data include two M-class flares: an M6.4 flare starting at 13:53 UT and ending at 15:27 UT; and an M3.
Pollux (K0) magnitude 1.1
Castor (A0) magnitude 1.6
Alhena (A0) magnitude 1.9
Tejat (M3) magnitude 2.9
Capella (G8) magnitude 0.1
Menkarlina (A2) magnitude 1.9
Hassaleh (K3) magnitude 2.7
Almaaz(B3) magnitude 3.0 ...
The Whirlpool Nebula (M51), the Sab galaxy (M94), the Sunflower Galaxy (M63), and the globular cluster M3 (magnitude 6) can be found in Canis Venatici. The Canes Venaticids occurs from January 13 - January 30.
More objects were added later, bringing the total to 110. In it, M1 is the Crab Nebula, M2 is a globular cluster in Aquarius, M3 is a globular cluster in Canes Venatici, etc. For a list of the Messier objects, click here.
 See also: Star, Light, Sky, Constellation, Orbit
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