Gruppo di NGC 1399

Gruppo di NGC 1399
Gruppo di galassie
Dati osservativi
(epoca J2000.0)
CostellazioneFornace
Ascensione retta03h 33m 04.2s
Declinazione-34° 24′ 44″
Distanza60 milioni di a.l. [1]
(18,3 Mpc)
Caratteristiche fisiche
TipoGruppo di galassie
Mappa di localizzazione
Gruppo di NGC 1399
Categoria di gruppi di galassie

Il Gruppo di NGC 1399 comprende almeno 42 galassie situate nella costellazione della Fornace e dell'Eridano.[2]

La distanza media tra il centro di massa di questo gruppo e la nostra Via Lattea è di circa 60 milioni di anni luce (18,3 Mpc).[2]

Membri

Le galassie componenti il gruppo, nell'ordine indicato nell'articolo di Garcia del 1993, sono elencate nella tabella sottostante.[2]


Membri del gruppo di NGC 1399
Nome Costellazione Classificazione Tipo RA (J2000.0) DEC (J2000.0) Velocità radiale (km/s) Magnitudine apparente Distanza (Mpc) Dimensioni (kal)
NGC 1326 Fornace (R)SB0^+(r) Lenticolare 03h 23m 56.4s -36° 27′ 53″ 1360 ± 1 10,5[3] 18,5 ± 1,3 86
NGC 1336 Fornace SA0- Lenticolare 03h 26m 32.2s -35° 42′ 49″ 1418 ± 3 12,3[3] 19,3 ± 1,4 82
NGC 1339 Fornace E4 Ellittica 03h 28m 06.6s -32° 17′ 10″ 1392 ± 3 11,6[3] 18,9 ± 1,3 71
NGC 1344
(=NGC 1340)
Fornace E5 Ellittica 03h 28m 19.7s -31° 04′ 05″ 1241 ± 15 10,4[3] 16,6 ± 1,2 74
NGC 1351 Fornace SA0^- pec? Lenticolare 03h 30m 35.0s -34° 51′ 14″ 1514 ± 3 11,6[3] 20,8 ± 1,5 107
NGC 1366 Fornace S0^0 Lenticolare 03h 33m 53.7s -31° 11′ 39″ 1231 ± 19 11,1[3] 16,6 ± 1,2 47
NGC 1369 Eridano SAB(s)a[4] Spirale intermedia 03h 36m 45.2s -36° 15′ 22″ 1414 ± 17 12,8[3] 19,5 ± 1,4 45
NGC 1373 Fornace E+? Ellittica 03h 34m 59.2s -35° 10′ 16″ 1334 ± 2 13,3[3] 18,2 ± 1,3 30
NGC 1374 Fornace E3 Ellittica 03h 35m 16.6s -35° 13′ 35″ 1294 ± 2 11,1[3] 17,7 ± 1,2 107
NGC 1379 Fornace E3 Ellittica 03h 36m 03.9s -35° 26′ 28″ 1324 ± 2 10,9[3] 18,1 ± 1,3 71
NGC 1387 Fornace SAB(s)0- Lenticolare 03h 36m 57.0s -35° 30′ 24″ 1302 ± 12 10,7[3] 17,8 ± 1,3 80
NGC 1399 Fornace E1 pec Ellittica 03h 38m 29.0s -35° 27′ 02″ 1425 ± 4 9,6[3] 19,7 ± 1,4 365
NGC 1406 Fornace SB(s)bc? Spirale barrata 03h 39m 23.3s -31° 19′ 17″ 1075 ± 3 11,8[3] 14,4 ± 1,0 95
NGC 1419 Eridano E pec? Ellittica 03h 40m 42.1s -37° 30′ 39″ 1571 ± 18 12,6[3] 21,9 ± 1,6 53
NGC 1425 Fornace SA(rs)b Spirale 03h 42m 11.5s -29° 53′ 36″ 1512 ± 2 10,6[3] 20,8 ± 1,5 174
NGC 1427 Fornace E5 Ellittica 03h 42m 19.4s -35° 23′ 33″ 1388 ± 3 10,9[3] 19,2 ± 1,4 109
NGC 1428 Fornace SAB0- pec? Lenticolare 03h 42m 22.7s -35° 09′ 14″ 1640 ± 8 12,9[3] 22,9 ± 1,6 47
NGC 1437
(=NGC 1436)
Eridano (R'_2)SAB(s)bc Spirale intermedia 03h 43m 37.7s -35° 51′ 11″ 1387 ± 8 11,7[3] 19,2 ± 1,4 76
NGC 1460 Eridano SB(rs)0^0 Lenticolare 03h 46m 13.7s -36° 41′ 47″ 1373 ± 13 12,6[3] 19,1 ± 1,4 57
IC 1913 Fornace SBb? Spirale barrata 03h 19m 34.5s -32° 27′ 54″ 1443 ± 1 13,6[5] 19,5 ± 1,4 75
IC 1919 Fornace SA0^-(rs)? Lenticolare 03h 26m 02.2s -32° 53′ 40″ 1323 ± 17 13,0[5] 17,8 ± 1,3 49
NGC 1351A
(=PGC 12952)
Fornace SB(rs)bc? Spirale barrata 03h 28m 48.7s -35° 10′ 41″ 1353 ± 2 13,4[3] 18,4 ± 1,3 86
NGC 1380A
(PGC 13335)
Fornace S0^0^? Lenticolare 03h 36m 47.5s -34° 44′ 23″ 1561 ± 6 12,4[3] 21,6 ± 1,5 67
ESO 301-11 Fornace SB?(r)cd? p Spirale barrata 03h 23m 54.2s -37° 30′ 33″ 1405 ± 5 12,66 ± 0,09 19,2 ± 1,4 48
ESO 302-09 Eridano SB(s)dm? Spirale barrata magellanica 03h 47m 34.1s -38° 34′ 36″ 987 ± 3 12,75 ± 0,09 13,5 ± 1,0 57
ESO 358-15 Fornace SBm? Pec Spirale barrata magellanica 03h 33m 06.8s -34° 48′ 29″ 1388 ± 3 13,77 ± 0,07 19,0 ± 1,3 26
ESO 358-19 Fornace SA0-? Lenticolare 03h 34m 30.8s -34° 17′ 51″ 1254 ± 29 14,37 17,0 ± 1,3 31
ESO 358-25 Fornace SA0-? Lenticolare 03h 35m 33.1s -32° 27′ 54″ 1389 ± 12 12,96 ± 0,09 19,0 ± 1,3 51
ESO 358-43 Fornace S0- Lenticolare 03h 38m 13.6s -33° 07′ 38″ 1369 ± 28 13,64 18,7 ± 1,4 36
ESO 358-5 Fornace SAB(s) m pec? Spirale intermedia magellanica 03h 27m 16.6s -33° 29′ 11″ 1628 ± 4 13,69 ± 0,09 22,4 ± 1,6 47
ESO 358-50 Fornace SA0^0? Lenticolare 03h 41m 03.6s -33° 46′ 46″ 1308 ± 23 12,57 ± 0,09 17,9 ± 1,3 50
ESO 358-54
(=NGC 1437A[3])
Eridano SAB(s)dm Spirale intermedia magellanica 03h 43m 02.2s -36° 16′ 24″ 886 ± 3 13,4[3] 11,8 ± 0,8 79
ESO 358-56 Fornace S0^0^? Lenticolare 03h 43m 22.6s -33° 56′ 25″ 1189 ± 29 14,08 16,2 ± 1,2 48
ESO 358-6 Fornace SB0^-? Lenticolare 03h 27m 18.0s -34° 31′ 35″ 1279 ± 17 13,08 ± 0,14 17,3 ± 1,2 39
ESO 358-61
(=NGC 1437B[3])
Eridano I0? Irregolare 03h 45m 54.8s -36° 21′ 25″ 1497 ± 3 13,1[3] 20,9 ± 1,5 28
ESO 418-8 Fornace SAB(rs)dm Spirale intermedia magellanica 03h 31m 30.6s -30° 12′ 48″ 1195 ± 0,3 12,56 16,0 ± 1,1 32
ESO 418-9 Fornace IB(s)m Irregolare magellanica 03h 31m 55.6s -31° 20′ 15″ 972 ± 5 12,67 ± 0,04 12,7 ± 0,9 33
PGC 12625 Fornace IB(s)m? Irregolare magellanica 03h 22m 04.8s -37° 35′ 15″ 1625 ± 7 19,3117 +/- 0,0657014*a 22,4 ± 1,6 62
PGC 12758 Fornace S0 Lenticolare 03h 24m 52.4s -35° 26′ 08″ 1318 ± 26 14,50 17,8 ± 1,3 11
PGC 13177 Fornace (R')SA0^-(r)? Lenticolare 03h 33m 33.8s -33° 34′ 24″ 1374 ± 7 14,98 18,8 ± 1,3 37
MCG -6-8-25 Fornace SB0^0(s) Lenticolare 03h 31m 24.8s -35° 19′ 52″ 1275 ± 26 12,71 17,3 ± 1,3 23
MCG -6-8-27 Fornace SAB0^0(rs) Lenticolare 03h 34m 29.5s -35° 32′ 47″ 1205 ± 1 13,04 16,3 ± 1,2 22

Il sito DeepskyLog[6] permette di trovare agevolmente le costellazioni in cui sono situate le galassie; in alternativa si possono utilizzare le coordinate delle galassie per individuarle.[7] Se non altrimenti indicato, le coordinate sono quelle fornite dal sito NASA/IPAC (National Aeronautics and Space Administration / Infrared Processing and Analysis Center).

Note

  1. ^ Riferito al centro di massa del gruppo.
  2. ^ a b c A.M. Garcia, General study of group membership. II - Determination of nearby groups, in Astronomy and Astrophysics Supplement Series, 100 #1, luglio 1993, pp. 47-90, Bibcode:1993A&AS..100...47G.
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x y (FR) Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», NGC 1400 à 1499, su astrovalleyfield.com. URL consultato il 6 gennaio 2025.
  4. ^ (EN) Celestial Atlas, su cseligman.com. URL consultato il 6 gennaio 2025.
  5. ^ a b (FR) Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», IC 1900 à 1999, su astrovalleyfield.com. URL consultato il 6 gennaio 2025.
  6. ^ DeepskyLog, su deepskylog.org.
  7. ^ Finding the constellation which contains given sky coordinates, su djm.cc.

Voci correlate

  Portale Oggetti del profondo cielo: accedi alle voci di Wikipedia che trattano di oggetti non stellari

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