32:
319:
data to investigate the star-formation patterns throughout the object, to verify a prediction that there should be a relation between the ages of stars and their positions within the galaxy. This will help them understand how the gravitational influence of the cluster has affected the internal workings of this galaxy, and how this galaxy has responded to passing through the cluster environment. This image was image of the day on March 4, 2005.
306:, NGC 1427A is travelling into the center of the Fornax cluster with a velocity of approximately 600 km per second. Its distinctive arrowhead shape has been formed by this rapid, upwards movement. The interaction of NGC 1427A with Fornax gasses and galaxies during its journey will cause the disruption of the galaxy within the next billion years, an event which was common during the
332:. Stars are forming in its symmetric pinwheel-shaped spiral arms, which can be traced into the galaxy's bright nucleus. This galaxy is, however, less dominated by very young stars than NGC 1427A, giving it an overall yellower color. At even greater distances background galaxies of various shapes and colors are scattered across the Hubble image.
477:
318:
The Hubble Space
Telescope's Used Advanced Camera's for Surveys that were used to obtain images of NGC 1427A in visible (green), red, and infrared filters in January 2003. These images were then combined by the Hubble Heritage team to create the color image shown in box. Astronomers are using the
327:
To the upper left of NGC 1427A is a background galaxy that happens to lie near Hubble's line of sight but is some 25 times further away, about 1.3 billion light-years away. In contrast to the irregularly shaped NGC 1427A, the background galaxy is a magnificent spiral, somewhat similar to our own
397:
Georgiev, Iskren Y.; Hilker, Michael; Puzia, Thomas H.; Chanamé, Julio; Mieske, Steffen; Goudfrooij, Paul; Reisenegger, Andreas; Infante, Leopoldo (June 2006). "The old globular cluster system of the dIrr galaxy NGC 1427A in the Fornax cluster".
620:
31:
181:
605:
234:
565:
400:
307:
299:. The resulting pressure is giving the galaxy its arrowhead outline and triggering the episodes of star formation.
526:
625:
296:
276:
268:
114:
62:
36:
22:
502:
630:
615:
419:
435:
409:
162:
148:
49:
46:
279:
to be 31.01 ± 0.21 which is about 52 Mly. It is the brightest dwarf irregular member of the
427:
423:
272:
261:
207:
610:
101:
69:
591:
NASA Astronomy
Picture of the Day: NGC 1427A: Galaxy in Motion (4 March 14 6:32 PM 2005)
280:
599:
303:
265:
57:
439:
431:
81:
566:"HubbleSite: Image - Galaxy NGC 1427A Plunges Toward the Fornax Galaxy Cluster"
195:
128:
573:
453:
329:
590:
551:
414:
284:
91:
199:
140:
107:
368:
295:
NGC 1427A is over 20,000 light-years long and similar to the
283:
and is in the foreground of the cluster's central galaxy
227:
206:
190:
180:
175:
161:
147:
113:
100:
90:
80:
68:
56:
44:
21:
552:"APOD: 2005 March 4 - NGC 1427A: Galaxy in Motion"
392:
390:
388:
8:
527:"NGC 1427A, an irregular galaxy in Eridanus"
501:Administrator, NASA Content (2017-02-07).
30:
413:
233:ESO 358- G 049, MCG -06-09-016, FCC 235,
503:"The Impending Destruction of NGC 1427A"
211:
166:
152:
341:
86:−35° 37′ 28″
18:
363:
361:
359:
357:
355:
353:
351:
349:
347:
345:
7:
621:Principal Galaxies Catalogue objects
277:globular cluster luminosity function
369:"NASA/IPAC Extragalactic aDatabase"
310:but has become increasingly rare.
16:Galaxy in the constellation Fornax
14:
1:
275:has been estimated using the
102:Heliocentric radial velocity
647:
432:10.1051/0004-6361:20064880
401:Astronomy and Astrophysics
606:Barred irregular galaxies
478:"Your NED Search Results"
308:evolution of the Universe
232:
29:
323:Background spiral galaxy
291:Characteristics and fate
424:2006A&A...452..141G
302:Under the influence of
533:(in Dutch). 2013-02-23
297:Large Magellanic Cloud
37:Hubble Space Telescope
531:Anne's Astronomy News
373:Results for NGC 1427a
482:ned.ipac.caltech.edu
458:simbad.u-strasbg.fr
228:Other designations
163:Absolute magnitude
149:Apparent magnitude
45:Observation data (
39:image of NGC 1427A
241:
240:
213:
168:
154:
638:
578:
577:
572:. Archived from
562:
556:
555:
548:
542:
541:
539:
538:
523:
517:
516:
514:
513:
498:
492:
491:
489:
488:
474:
468:
467:
465:
464:
450:
444:
443:
417:
415:astro-ph/0602263
394:
383:
382:
380:
379:
365:
273:distance modulus
262:irregular galaxy
223:
219:
139:
138:
127:
126:
76:
34:
19:
646:
645:
641:
640:
639:
637:
636:
635:
596:
595:
587:
582:
581:
564:
563:
559:
550:
549:
545:
536:
534:
525:
524:
520:
511:
509:
500:
499:
495:
486:
484:
476:
475:
471:
462:
460:
452:
451:
447:
396:
395:
386:
377:
375:
367:
366:
343:
338:
325:
316:
293:
221:
217:
176:Characteristics
171:-18.62 ± 0.64
137:
134:
133:
132:
125:
122:
121:
120:
74:
70:Right ascension
40:
17:
12:
11:
5:
644:
642:
634:
633:
628:
626:Fornax Cluster
623:
618:
613:
608:
598:
597:
594:
593:
586:
585:External links
583:
580:
579:
576:on 2017-08-26.
570:hubblesite.org
557:
543:
518:
493:
469:
445:
408:(1): 141–153.
384:
340:
339:
337:
334:
324:
321:
315:
312:
304:galactic tides
292:
289:
281:Fornax cluster
255:ESO 358- G 049
246:also known as
239:
238:
230:
229:
225:
224:
214:
204:
203:
192:
188:
187:
184:
178:
177:
173:
172:
169:
159:
158:
155:
145:
144:
135:
123:
117:
111:
110:
104:
98:
97:
94:
88:
87:
84:
78:
77:
72:
66:
65:
60:
54:
53:
42:
41:
35:
27:
26:
15:
13:
10:
9:
6:
4:
3:
2:
643:
632:
629:
627:
624:
622:
619:
617:
614:
612:
609:
607:
604:
603:
601:
592:
589:
588:
584:
575:
571:
567:
561:
558:
553:
547:
544:
532:
528:
522:
519:
508:
504:
497:
494:
483:
479:
473:
470:
459:
455:
449:
446:
441:
437:
433:
429:
425:
421:
416:
411:
407:
403:
402:
393:
391:
389:
385:
374:
370:
364:
362:
360:
358:
356:
354:
352:
350:
348:
346:
342:
335:
333:
331:
322:
320:
313:
311:
309:
305:
300:
298:
290:
288:
286:
282:
278:
274:
270:
267:
266:constellation
263:
259:
256:
252:
249:
245:
236:
231:
226:
215:
209:
208:Apparent size
205:
202:) (estimated)
201:
197:
194:~75,700
193:
189:
185:
183:
179:
174:
170:
164:
160:
156:
150:
146:
142:
130:
118:
116:
112:
109:
105:
103:
99:
95:
93:
89:
85:
83:
79:
73:
71:
67:
64:
61:
59:
58:Constellation
55:
51:
48:
43:
38:
33:
28:
24:
20:
574:the original
569:
560:
546:
535:. Retrieved
530:
521:
510:. Retrieved
506:
496:
485:. Retrieved
481:
472:
461:. Retrieved
457:
448:
405:
399:
376:. Retrieved
372:
326:
317:
314:Observations
301:
294:
257:
254:
250:
247:
243:
242:
198:(23.21
106:2028 ± 1 km/
631:ESO objects
616:NGC objects
454:"NGC 1427A"
82:Declination
600:Categories
537:2018-04-20
512:2018-04-20
487:2024-07-27
463:2024-07-27
378:2007-04-21
336:References
248:ESO 358-49
244:NGC 1427A,
136:−1.4
124:−4.7
330:Milky Way
285:NGC 1399
115:Distance
96:0.006764
92:Redshift
75:3 40 9.3
440:8546493
420:Bibcode
271:. Its
264:in the
611:Fornax
438:
269:Fornax
260:is an
210:
186:IB(s)m
165:
151:
63:Fornax
436:S2CID
410:arXiv
237:13500
220:× 1.5
131:(15.9
50:epoch
47:J2000
25:1427A
507:NASA
191:Size
182:Type
157:13.4
119:51.9
428:doi
406:452
253:or
235:PGC
216:2.3
212:(V)
200:kpc
167:(V)
153:(V)
141:Mpc
129:Mly
23:NGC
602::
568:.
529:.
505:.
480:.
456:.
434:.
426:.
418:.
404:.
387:^
371:.
344:^
287:.
196:ly
554:.
540:.
515:.
490:.
466:.
442:.
430::
422::
412::
381:.
258:,
251:,
222:′
218:′
143:)
108:s
52:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
