Disclaimer: The following document (from catalogue VII/155) results from an on-line translation from latex to html (the cgiprint tool developed at CDS). The correct presentation requires an execution of latex on the original file
This description is an excerpt from the Documentation for the Computer-Readable Version of the Second Reference Catalogue of Bright Galaxies (RC2), catalogue numbered VII/122, prepared by Theresa A. Nagy and Robert S. Hill (April 1981), revised by Suzan E. Gessner and Lee E. Brotzman (December 1990) for NASA Goddard Space Flight Center, Greenbelt, MD 20771
Classes Families Varieties Stages T Type Code
Ellipticals Compact –6 cE cE . . . Ellipt. (0–6) –5 E0 . E . 0 . Intermediate –5 E0–1 . E . 0+ ``cD'' –4 E+ . E+ . .
Lenticulars S0 . L Non-barred SA0 . LA Barred SB0 . LB Mixed SAB0 . LX Inner ring S(r)0 . L . R S-shaped S(s)0 . L . S Mixed S(rs)0 . L . T Early –3 S0- . L . . – Intermediate –2 S0○ . L . . 0 Late –1 S0+ . L . . +
Spirals Non-barred SA . SA Barred SB . SB Mixed SAB . SX Inner ring S(r) . S . R S-shaped S(s) . S . S Mixed S(rs) . S . T 0/a 0 S0/a . S . . 0 a 1 Sa . S . . 1 ab 2 Sab . S . . 2 b 3 Sb . S . . 3 bc 4 Sbc . S . . 4 c 5 Sc . S . . 5 cd 6 Scd . S . . 6 d 7 Sd . S . . 7 dm 8 Sdm . S . . 8 m 9 Sm . S . . 9
Irregulars Non-barred IA . IA Barred IB . IB Mixed IAB . IX S-shaped I(s) . I . S Non-Magellanic 90 I0 . I . 0 Magellanic 10 Im . I . . 9 Compact 11 cI cI
Peculiars 99 Pec . P Peculiarities Peculiarity pec . . . . . P
(All types) Uncertain : . . . . * Doubtful ? . . . . ? Spindle sp . . . . . / Outer ring (R) R . . . . . . Pseudo-outer R (R') P . . . . . .
Hubble Revised T
E E -5 E-S0 L-: -3: S0 L -2 IrrII I0 0: S0/a S0/a 0 Sa Sa 1 Sa-b Sab 2 Sb Sb 3 Sb-c Sbc 4 Sc Scd: 6: Sc-Irr Sdm: 8: IrrI Im 10
S... S. 3? S``early'' S.(Sa?) 1? S``late'' S.Sc? 5?
Observatory Tel. Ap. Code Observatory Tel. Ap. Code (in.) (in.)
Palomar 200 P200. Mt. Wilson 60 W060. Lick 120 L120. Tautenburg 52 T052. Mt. Wilson 100 W100. Palomar (prints) 48 P048. McDonald 82 M082. Palomar (glass) 48 PG48. Radcliffe 74 R074. ESO 40 E040. Mt. Stromlo 74 S074. Siding Spring 40 S040. USNO (Flagstaff) 61 N061. Lick 36 L036. Boyden 60 B060. Mt. Stromlo 30 S030. Cordoba 60 C060.
Code Reference
....B Buta, R., Publ. Warner and Swasey Obs., II, in press, 1976 ....C Corwin, H. G., Publ. Dept. Astr. U. Texas, II, 2, No. 12, 1968; II, 3, No. 5, 1970; PASP, 83, 320, 1971; unpublished 1971-1975. ....F Fisher, J. R., and Tully, R. B., A&A, 44, 151, 1975 ....H Holmberg, E., et al., A&AS, 18, 463 and 491, 1974 ....N Nilson, P., UGC, 1973; Uppsala Obs. Rep. No. 5, 1974 ....R Rood, H. J., and Baum, W. A., AJ, 72, 398, 1967 ....V de Vaucouleurs, G., ApJS, No. 74, 1963; RC1, 1964; unpublished 1964-1975.
Classes Type Code Classes Type Code
Elliptical E(0-7) E0 Irregular I I E-D ED S-I SI D-E DE I-S IS S-E SE I-B IB1-3 Dusty D B-I BI4-6 D-S DS Peculiarities L(1) ..L S-D SD P ..P1-3 Spiral S S ?,: *4-6 Color Classes Code5-6 Barred B B a A (B) SX af AF B-S BS f F S-B SB fg FG g G gk GK k K : *
(1) Low surface brightness
Classes Families Stages Type Coding Notes
Elliptical Ellipcicity (0-9) E0 E 0 (1)
Sprial Ordinary S S Barred SB S B Intermediate S (B) S X a Sa S 0 b- Sb- S 2 b Sb S 3 b+ Sb+ S 4 c Sc S 5 - S- S 6 + S+ S 7
Irregular Ir I Ir+ I 9
Peculiar P P Peculiarities Bright nucleus N N Nebulous arms, mild case (n) N- (2) Nebulous arms, normal n N Nebulous arms, extreme nn N+ Patchy arms, mild case (*) K- Patchy arms, normal * K Patchy arms, extreme ** K+ Distorted arms,mild case (t) T- Distorted arms, normal t T Distorted arms, extreme tt T+ Peculiarity p P Uncertain ?,:,() * * * (3)
Luminosity Code Luminosity Code Classes Classes
I 1 III-IV 6 I-II 2 IV 7 II 3 IV-V 8 II-III 4 V 9 III 5
(1) Includes lenticulars, especially in ES, E9 (2) Combined cases are coded NK, NT, etc (3) Applies to symbol or group of symbols immediately preceding it
© Université de Strasbourg/CNRS
• Contact