Global Information Lookup Global Information

Messier 9 information


Messier 9
Messier 9 by HST
Observation data (J2000 epoch)
ClassVIII[1]
ConstellationOphiuchus
Right ascension17h 19m 11.78s[2]
Declination–18° 30′ 58.5″[2]
Distance25.8 kly (7.9 kpc)[3]
Apparent magnitude (V)7.7[4]
Apparent dimensions (V)9.3′[5]
Physical characteristics
Mass4.22×105[3] M
Radius45 ly[3]
Metallicity = –1.77[3] dex
Estimated age12.0 Gyr[6]
Other designationsHD 156587, NGC 6333[7]
See also: Globular cluster, List of globular clusters

Messier 9 or M9 (also designated NGC 6333) is a globular cluster in the constellation of Ophiuchus. It is positioned in the southern part of the constellation to the southwest of Eta Ophiuchi, and lies atop a dark cloud of dust designated Barnard 64.[5][8] The cluster was discovered by French astronomer Charles Messier on June 3, 1764, who described it as a "nebula without stars".[9] In 1783, English astronomer William Herschel was able to use his reflector to resolve individual stars within the cluster. He estimated the cluster to be 7–8′ in diameter with stars densely packed near the center.[10]

M9 has an apparent magnitude of 7.9, an angular size of 9.3′, and can be viewed with a small telescope.[5] It is one of the nearer globular clusters to the center of the galaxy as is around 5,500 light-years from the Galactic Center. Its distance from Earth is 25,800 light-years.

The total luminosity of this cluster is around 120,000 times that of the Sun, the absolute magnitude being -8.04. The brightest individual stars in M9 are of apparent magnitude 13.5, making them visible in moderately sized telescopes. There have been 24 variable stars found in M9: 21 RR Lyrae variables, plus a long-period variable, Type II Cepheid, and an eclipsing binary. No blue stragglers or SX Phoenicis variables have been discovered. Based upon the periods of the RR Lyr variables, this cluster is classified as an Oosterhoff type II globular, which precludes an extra-galactic origin.[11]

At about 80' (1+13 degrees) to the northeast of M9 is the dimmer globular cluster NGC 6356, while about the same to the southeast is the globular NGC 6342.

  1. ^ Cite error: The named reference hcob849_11 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference mnras332_2_441 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference apj742_1_51 was invoked but never defined (see the help page).
  4. ^ "Messier 9". SEDS Messier Catalog. Archived from the original on 11 July 2022. Retrieved 27 April 2022.
  5. ^ a b c Cite error: The named reference Gilmour2012 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference mnras385_4_1998 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference simbad was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference OMeara2014 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Machholz2002 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Klein1901 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference mnras434_2_1220 was invoked but never defined (see the help page).

and 29 Related for: Messier 9 information

Request time (Page generated in 0.7975 seconds.)

Messier 9

Last Update:

media related to Messier 9. Messier 9, SEDS Messier pages M9, Galactic Globular Clusters Database page The glittering stars of Messier 9, March 16, 2012...

Word Count : 676

Mark Messier

Last Update:

children to take up the sport." Messier was born in St. Albert, Alberta, the son of Mary-Jean (Dea) and Doug Messier. He was the second son and third...

Word Count : 5435

Messier object

Last Update:

The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his Catalogue des Nébuleuses et des Amas...

Word Count : 2317

Messier 93

Last Update:

within include a yellow straggler component. Messier 93 atlas image Finder chart for M93 List of Messier objects Wu, Zhen-Yu; et al. (November 2009),...

Word Count : 706

Messier 13

Last Update:

of objects not to mistake for comets; Messier's list, including Messier 13, eventually became known as the Messier catalog. It is located at right ascension...

Word Count : 1513

Messier 3

Last Update:

discovered on May 3, 1764, and was the first Messier object to be discovered by Charles Messier himself. Messier originally mistook the object for a nebula...

Word Count : 1033

Charles Messier

Last Update:

C/1771 G1 (Messier) C/1773 T1 (Messier) C/1780 U2 (Messier) C/1788 W1 (Messier) C/1793 S2 (Messier) C/1798 G1 (Messier) C/1785 A1 (Messier-Méchain) He...

Word Count : 1266

Messier 87

Last Update:

Wikimedia Commons has media related to Messier 87. Messier 87, SEDS Messier pages ESA/Hubble images of M87 Messier 87 on WikiSky: DSS2, SDSS, GALEX, IRAS...

Word Count : 9560

Messier 14

Last Update:

Messier 14 (also known as M14 or NGC 6402) is a globular cluster of stars in the constellation Ophiuchus. It was discovered by Charles Messier in 1764...

Word Count : 371

Messier 4

Last Update:

09526. Bibcode:2021MNRAS.505.5957B. doi:10.1093/mnras/stab1474. "Messier 4". SEDS Messier Catalog. Archived from the original on 27 June 2023. Retrieved...

Word Count : 1215

Messier 81

Last Update:

Galaxy". In 1779, Pierre Méchain and Charles Messier reidentified Bode's object, hence listed it in the Messier Catalogue. The galaxy is to be found approximately...

Word Count : 2045

Messier 10

Last Update:

Commons has media related to Messier 10. Messier 10, SEDS Messier pages Messier 10, Galactic Globular Clusters Database page Messier 10 on WikiSky: DSS2, SDSS...

Word Count : 906

Messier 66

Last Update:

from the James Webb Space Telescope Messier 66 by 2MASS An ultraviolet image of Messier 66 by GALEX List of Messier objects Skrutskie, Michael F.; Cutri...

Word Count : 903

Messier 84

Last Update:

Messier 84 or M84, also known as NGC 4374, is a giant elliptical or lenticular galaxy in the constellation Virgo. Charles Messier discovered the object...

Word Count : 712

Messier 83

Last Update:

at the Cape of Good Hope. Charles Messier added it to his catalogue of nebulous objects (now known as the Messier Catalogue) in March 1781. It is one...

Word Count : 1272

Messier 12

Last Update:

to Messier 12. Messier 12, SEDS Messier pages Messier 12, Galactic Globular Clusters Database page 'Stolen' stars article at Universe Today Messier 12...

Word Count : 719

Messier 49

Last Update:

This galaxy was discovered by astronomer Charles Messier in 1777. As an elliptical galaxy, Messier 49 has the physical form of a radio galaxy, but it...

Word Count : 748

Messier 73

Last Update:

Commons has media related to Messier 73. SEDS: Messier Object 73 Messier 73, LRGB CCD image based on two-hours total exposure Messier 73 on WikiSky: DSS2, SDSS...

Word Count : 763

Messier 100

Last Update:

2006-08-31. "Messier 100". Hearst Observatory. Retrieved 2010-02-23. "Messier 100". SEDS Messier Catalog. Retrieved 30 April 2022. "Messier 100". SEDS:...

Word Count : 1085

Messier 88

Last Update:

constellation Coma Berenices. It was discovered by Charles Messier in 1781. M88 is one of the fifteen Messier objects that belong to the nearby Virgo Cluster of...

Word Count : 740

Messier 19

Last Update:

Messier 19 or M19 (also designated NGC 6273) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier on June 5, 1764...

Word Count : 645

Messier 28

Last Update:

media related to Messier 28. Globular Cluster M28 @ SEDS Messier pages Messier 28, Galactic Globular Clusters Database page Messier 28 on WikiSky: DSS2...

Word Count : 751

Ring Nebula

Last Update:

magnitude is only +15.75. List of planetary nebulae Messier object New General Catalogue List of Messier objects NGC 6565, which is undergoing a similar process...

Word Count : 1564

Messier 61

Last Update:

Barnaba Oriani on May 5, 1779, six days before Charles Messier discovered the same galaxy. Messier had observed it on the same night as Oriani but had mistaken...

Word Count : 1002

Messier 78

Last Update:

"Messier 78". SEDS Messier Catalog. Retrieved 30 April 2022. Frommert, Hartmut; Kronberg, Christine (9 October 2018), "Messier 78", SEDS Messier pages...

Word Count : 614

9

Last Update:

Solar System. Messier object M9 is a magnitude 9.0 globular cluster in the constellation Ophiuchus. The New General Catalogue object NGC 9, a spiral galaxy...

Word Count : 4817

Messier 86

Last Update:

Messier 86 (also known as M86 or NGC 4406) is an elliptical or lenticular galaxy in the constellation Virgo. It was discovered by Charles Messier in 1781...

Word Count : 538

Messier 58

Last Update:

of Messier objects Messier 91 Messier 95 Messier 109 M100 NGC 4536 The other barred spiral galaxies in Messier's catalogue are Messier 91, Messier 95...

Word Count : 1091

M9

Last Update:

90mm anti-aircraft guns T40/M9 Tank Destroyer American tank destroyer Messier 9 (M9), a globular cluster in the constellation Ophiuchus ATC code M09 Other...

Word Count : 470

PDF Search Engine © AllGlobal.net