Sky Charts SK
Popis katalógov

  Notes :

      N: Notes found in the Notes table.
      O: Orbit. Where motion has exceeded 360 degrees, no values are listed in the position angle and separation columns. Orbits may be found in the "Fourth Catalog of Orbits of Visual Binary Stars" (Worley and Heintz, 1983), and in the Information Circulars published by Commission 26 of the IAU, as well as in the literature.
      a: Pair appears in an appendix list, not part of the discoverer's regular numbering system.
      r: Pair was listed, but in a "rejected" list, not part of the discoverer's regular numbering sequence.
      s: Pair has other discoverer's designations and numbers in the literature due to duplicate discovery. We have given credit to the earliest discovery observation (and correct identification) reported in the literature. The List of Synonyms follows the List of Additional Discoverers.
      p: Coordinates and proper motions from the ACRS, PPM, IRS, and FK5 catalogs.

Object classification :

Gx OC Gb Nb Pl C+N Ast Kt *** D* * ? blank - PD

Galaxy Open star cluster Globular star cluster, usually in the Milky Way Galaxy Bright emission or reflection nebula Planetary nebula Cluster associated with nebulosity Asterism or group of a few stars Knot or nebulous region in an external galaxy Triple star Double star Single star Uncertain type or may not exist Unidentified at the place given, or type unknown Object called nonexistent in the RNGC (Sulentic and Tifft 1973) Photographic plate defect

Note on Desc: description of the object, as given by Dreyer or corrected by him, in a coded or abbreviated form. The abbreviations and their combination are fully described in the introduction to the published catalog.

ab alm am annul att b bet biN bn bs bp bf B c chev co com comp conn cont C Cl d def dif diffic dist D e ee er exc E f F g glob. gr i iF inv l L m m M n neb nebs neby nf np ns nr N p pf p pg pm ps plan prob P PN r rr rrr R RR Ri s s sf sp sc sev st st 9... st 9..13 stell susp S S* trap triangle triN v vv var * *10 *7-8 ** *** ! !! !!!

about almost among annular or ring nebula attached brighter between binuclear brightest to n side brightest to s side brightest to p side brightest to f side bright considerably chevelure coarse, coarsely cometic (cometary form) companion connected in contact compressed cluster diameter defined diffused difficult distance, or distant double extremely, excessively most extremely easily resolvable excentric extended following (eastward) faint gradually globular group irregular irregular figure involved, involving little (adv.); long (adj.) large much magnitude middle, or in the middle north nebula nebulous nebulosity north following north preceding north-south near nucleus, or to a nucleus preceding (westward) preceding-following pretty (adv., before F. B. L, S) pretty gradually pretty much pretty suddenly planetary nebula (same as PN) probably poor (sparse) in stars planetary nebula resolvable (mottled, not resolved) partially resolved, some stars seen well resolved, clearly consisting of stars round exactly round rich in stars suddenly (abruptly) south south following south preceding scattered several stars (pl.) stars of 9th magnitude and fainter stars of mag. 9 to 13 stellar, pointlike suspected small in angular size small (faint) star trapezium triangle, forms a triangle with trinuclear very _very_ variable a single star a star of 10th magnitude star of mag. 7 or 8 double star (same as D*) triple star remarkable very much so a magnificent or otherwise interesting object