Details on Acronym: [W73b] | |
| [W73b] | (Williams, 1973) |
| Write: | <<[W73b] SN>> |
| N: | 4 |
| Object: | Region (SIMBAD class: Region = Region defined in the Sky) |
| Note: | Regions recommended as standards for HI observations. S7, S8, S9 found in van Woerden (1971) IAU general assembly. |
| Ref: | =1973A&AS....8..505W |
| by | WILLIAMS D.R.W. |
| Astron. Astrophys., Suppl. Ser., 8, 505-516 (1973) | |
| Studies of four regions for use as standards in 21-cm observations. | |
| o | Table I: <[W73b] AN> (Nos S6-S9). |
| Origin | of the Acronym: S = Created by Simbad, the CDS Database |