Globular Cluster NGC 6293 & Dark Cloud Barnard 59
NGC 6293
This globular cluster was discovered by William Herschel on 24 May 1784 and cataloged as VI-12. He noted the following: «Another miniature cluster like thee preceding [M 19], but rather coarser.» [463] John Herschel first observed it at home in Slough during sweep 148 on 16 April 1828 and listed it as h 1977 with the note: «Very bright, round, preddy suddenly brighter in the middle; 90"; resolved; the stars are 19 or 20 m. This then is entitled to the name of a globular cluster.» [466] Later during his observation in 1834-1838 from South Africa he observed the same cluster twice and listed it as h 3667. [11]
| Designation | NGC 6293 |
| Type | GCL (IV) |
| Right Ascension (J2000.0) | 17h 10m 10.4s |
| Declination (J2000.0) | -26° 34' 52" |
| Diameter | 8.2 arcmin |
| Visual magnitude | 8.3 mag |
| Metric Distance | 9.500 kpc |
| Dreyer Description | globular, vB, L, R, psbM, rrr, st 16 |
| Identification, Remarks | WH VI 12; h 1977=3667; GC 4270; GCL 55; ESO 519-SC5 |
Barnard 59
In 1919 Edward. E. Barnard found on photographs he made an irregular dark cloud near cluster NGC 6293 and listed it as B 59 in his «On the Dark Markings of the Sky». [239]
| Name | Barnard 59 |
| Object Type | Dark Cloud (nebula) |
| Right Ascension (J2000.0) | 17h 11m 18s |
| Declination (J2000.0) | -27° 22' 00" |
| Angular size | 50' × 50' |
| Identifiers | Barnard 59; LDN 1746; TGU H25 P5; [DB2002b] G357.08+7.19 |
Finder Chart
The globular cluster NGC 6293 with the dark clouds Barnard 59 is located in the constellation Ophiuchus. They are on 8 June in opposition to the Sun. From Switzerland it can best be seen in the months March to August.
