Dictionary of Nomenclature of Celestial Objects (Last update: 24-Jan-2023)
Result of query: info cati USNO-A1.0$
Details on Acronym: PMM PMM (Precision Measuring Machine)
***** Avoid the usage of PMM, prefer USNO-A1.0Originof the Acronym: L = Found in the literature Details on Acronym: USNO-A1.0 USNO-A1.0 (US Naval Obs., A1.0 catalogue)= (PMM)
Object:* (SIMBAD class: Star)
Note:Stars found in th USNO A1.0 catalogue: In the format, the 4 first digits 'NNNN' from 0000 to 1725 are representing the distance in 0.1deg to the South Pole (step is 75), and the last 'NNNNNNNN' are a sequential number (8 digits) in the zone, ordered by RA. The USNO-A1.0 was compiled from the blue/red overlaps of the detection lists generated from scans of POSS-I O and E plates, and SRC-J and ESO-R plates.
, et al.
The PMM USNO-A1.0 Catalog., 0-None (1997)
A catalogue of astrometric standards.
o<USNO-A1.0 NNNN-NNNNNNNN> N=488006860.
=E=Catalogue in electronic form as I/243Originof the Acronym: A = Assigned by the author(s)