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PSR J1719β1438 b was, at the time of its August 25, 2011, discovery, the densest planet ever discovered, at nearly 20 times the density of
Jupiter (about 23 times the density of water). It is slightly more massive than Jupiter. It is thought to be composed of oxygen and carbon (as opposed to hydrogen
398:
It is highly unlikely that this planet would have formed before its parent pulsar, as the resulting supernova would destroy any nearby planets. It has been proposed that PSR J1719β1438 b is not a planet but a star. Specifically, PSR J1719β1438 b was a
382:
The oxygen is most likely on the surface of the planet, with increasingly higher quantities of carbon deeper inside the planet. The intense pressure acting upon the planet suggests that the carbon is crystallized, much like
952:
1541:
713:
647:
Bailes, M.; Bates, S. D.; Bhalerao, V.; Bhat, N. D. R.; Burgay, M.; Burke-Spolaor, S.; d'Amico, N.; Johnston, S.; Keith, M. J.; et al. (2011).
838:
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PSR J1719β1438 b orbits its host star with a period of 2.17 hours and at a distance of 0.89 solar radii (619,173 km or 384,736 mi).
1097:
307:
55:
93:
362:. The pulsar completes more than 10,000 rotations a minute. It is approximately 12 miles (19 kilometers) across but with 1.4
320:, in which small modulations detected in the highly regular pulsar signature are measured and extrapolated. Observatories in
114:
411:. The gravity from the pulsar stole hydrogen and helium, and the remaining carbon crystallized, forming the diamond planet.
407:, but the yellow dwarf star survived the supernova. Billions of years later, PSR J1719β1438 b became a red giant and then a
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similar to the Sun in a binary with PSR J1719β1438, a higher-mass star. PSR J1719β1438 swelled up to become a
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735:"Carbon under extreme conditions: Phase boundaries and electronic properties from first-principles theory"
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286:. PSR J1719-1438 b orbits so closely to its host star that its orbit would fit inside the
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in
Melbourne, Australia. The orbiting planet was published in the journal
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649:"Transformation of a Star into a Planet in a Millisecond Pulsar Binary"
494:"Transformation of a Star into a Planet in a Millisecond Pulsar Binary"
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Cauda constellation, approximately one minute from the border with
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is most likely composed largely of crystalline carbon but with a
1486:
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733:
Correa, Alfredo A.; Bonev, Stanimir A.; Galli, Giulia (2006).
302:
PSR J1719β1438 was first observed in 2009 by a team headed by
287:
143:
492:
Bailes, M.; Bates, S. D.; et al. (August 25, 2011).
266:
that was discovered on August 25, 2011, in orbit around
590:"Scientists Discover 'Diamond Planet' Orbiting Pulsar"
316:
on August 25, 2011. The planet was confirmed through
1555:
1518:
1485:
1403:
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562:"Surprise! Alien Planet Made of Diamond Discovered"
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739:Proceedings of the National Academy of Sciences
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466:"Astronomers discover planet made of diamond"
8:
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509:
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332:were used to confirm these observations.
714:Max Planck Institute for Radio Astronomy
560:Tillman, Nola Taylor (August 25, 2011).
555:
553:
445:
346:PSR J1719β1438 is a pulsar some 4,000
31:
1579:(end of mission; Mar 2010 / May 2011)
44:Artist's conception of PSR J1719-14 b
7:
616:Bailes, Matthew (August 30, 2011).
375:and helium, the main components of
294:had been theoretically postulated.
464:Hirschler, Ben (August 25, 2011).
308:Swinburne University of Technology
25:
716:. August 25, 2011. Archived from
1615:
1614:
1603:
1520:
1100:
933:
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921:
868:
38:
889:(mission to the Moon; Sep 2011)
588:PCMag Staff (August 25, 2011).
120:0.004 AU (600,000 km)
1:
1656:Exoplanets detected by timing
1651:Exoplanets discovered in 2011
1630:Category:2012 in outer space
1625:Category:2011 in outer space
1620:Category:2010 in outer space
1591:orbital insertion; Jul 2011)
1571:orbital insertion; Apr 2011)
1542:45P/HondaβMrkosβPajduΕ‘Γ‘kovΓ‘
914:(mission to Mars; Nov 2011)
908:(mission to Mars; Nov 2011)
883:(Jupiter orbiter; Aug 2011)
1692:
710:"A Planet made of Diamond"
379:like Jupiter and Saturn).
339:
1598:
953:Asteroid close approaches
919:
895:(Mars orbiter); Nov 2011)
852:
805:
796:
788:
624:. Max-Planck-Gesellschaft
354:) away from Earth in the
253:
137:Orbital period (sidereal)
37:
290:. The existence of such
177:Physical characteristics
27:Extrasolar pulsar planet
899:Mars Science Laboratory
760:10.1073/pnas.0510489103
686:10.1126/science.1208890
528:10.1126/science.1208890
157:Time of periastron
107:Orbital characteristics
1610:Outer space portal
720:on September 14, 2011
298:Observational history
866:Space probe launches
618:"The diamond planet"
1547:C/2011 W3 (Lovejoy)
1466:SDSS J102915+172927
751:2006PNAS..103.1204C
678:2011Sci...333.1717B
520:2011Sci...333.1717B
504:(6050): 1717β1720.
84:Discovery date
69:Discovery site
34:
1375:MOA-2009-BLG-387Lb
272:millisecond pulsar
162:2,455,235.51652439
56:Discovered by
1638:
1637:
1556:Space exploration
815:
814:
806:Succeeded by
799:Most dense planet
712:(Press release).
662:(6050): 1717β20.
423:, a carbon planet
401:yellow dwarf star
282:far greater than
264:extrasolar planet
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16:(Redirected from
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1472:moons of Jupiter
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1380:PSR J1719β1438 b
1131:habitability of
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1070:(549948) 2011 WL
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1058:(308635) 2005 YU
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1046:(436724) 2011 UW
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1034:(415029) 2011 UL
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971:(471240) 2011 BT
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959:(367789) 2011 AG
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789:Preceded by
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260:PSR J1719β1438 b
94:Detection method
42:
35:
33:PSR J1719β1438 b
21:
18:PSR J1719-1438 b
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1436:Kerberos (moon)
1431:ULAS J1120+0641
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641:Further reading
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370:Characteristics
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115:Semi-major axis
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87:August 25, 2011
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1661:Pulsar planets
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1441:PSR J1719β1438
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1416:Swift J1644+57
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405:red supergiant
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342:PSR J1719β1438
340:Main article:
337:
334:
304:Matthew Bailes
299:
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292:carbon planets
268:PSR J1719β1438
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171:PSR J1719β1438
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61:Matthew Bailes
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1421:Kronberger 61
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1411:UDFj-39546284
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1138:Gliese 3634 b
1136:
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1111:82 G. Eridani
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847:2011 in space
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745:(5): 1204β8.
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318:pulsar timing
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276:pulsar planet
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100:Pulsar timing
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1676:White dwarfs
1623:
1583:
1575:
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1379:
1127:Gliese 433 b
903:
879:
797:
742:
738:
722:. Retrieved
718:the original
659:
655:
626:. Retrieved
621:
611:
599:. Retrieved
593:
583:
571:. Retrieved
565:
501:
497:
487:
475:. Retrieved
469:
397:
389:
381:
373:
364:solar masses
345:
311:
301:
259:
258:
147:2.176951032
142:0.090706293
126:Eccentricity
29:
1671:Mega-Earths
1477:GRB 111209A
1426:WD 0806β661
1404:Discoveries
1198:HD 137388 b
1193:HD 131496 b
1188:HD 100655 b
1133:Gliese 581d
912:Fobos-Grunt
809:Kepler-131c
409:white dwarf
348:light-years
184:Mean radius
1645:Categories
1348:Kepler-39b
1343:Kepler-22b
1290:Kepler-16b
1285:Kepler-14b
1183:HD 98219 b
1178:HD 96063 b
1173:HD 85512 b
1168:HD 82886 b
1163:HD 30856 b
1098:Exoplanets
803:2011β2014
792:Kepler-10b
724:August 26,
601:August 25,
573:August 25,
477:August 25,
440:References
433:EF Eridani
377:gas giants
1564:MESSENGER
1532:P/2011 NO
1510:SN 2011fe
1505:SN 2011dh
1500:SN 2011by
1495:SN 2010lt
1370:LkCa 15 b
1353:Kepler-70
1311:Kepler-20
1295:Kepler-18
1248:Kepler-11
1231:Kepler-10
1226:Kepler-9d
1221:HR 7722 c
1203:HIP 57274
1158:HD 7199 b
1153:HD 1502 b
1148:HAT-P-33b
1143:HAT-P-32b
943:Selected
904:Curiosity
893:Yinghuo-1
702:206535504
669:1108.5201
567:Space.com
544:206535504
511:1108.5201
427:BPM 37093
394:Formation
360:Ophiuchus
336:Host star
330:Australia
130:< 0.06
78:Australia
74:Melbourne
50:Discovery
1537:(Elenin)
1395:WASP-44b
1390:WASP-43b
1385:WASP-39b
858: Β»
779:16432191
694:21868629
536:21868629
421:WASP-12b
415:See also
249:β₯23 g cm
1666:Serpens
1569:Mercury
1519:Comets
1450:2011 QF
1082:2011 XC
1028:2011 MD
1023:2009 BD
1018:2011 GA
1007:2011 EO
995:2011 ES
983:2011 CQ
770:1345714
747:Bibcode
674:Bibcode
656:Science
628:May 23,
516:Bibcode
498:Science
471:Reuters
385:diamond
356:Serpens
352:parsecs
350:(1,200
322:Britain
313:Science
284:diamond
280:density
244:density
1576:Spirit
777:
767:
700:
692:
622:mpg.de
542:
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328:, and
326:Hawaii
274:. The
262:is an
227:(~330
217:~1.02
63:et al.
1589:Vesta
1487:Novae
1461:U1.11
906:rover
887:GRAIL
698:S2CID
664:arXiv
652:(PDF)
595:PCMag
540:S2CID
506:arXiv
242:Mean
189:β€0.4
1584:Dawn
945:NEOs
880:Juno
856:2012
775:PMID
726:2011
690:PMID
630:2022
603:2011
575:2011
532:PMID
479:2011
387:is.
270:, a
213:Mass
167:Star
1049:158
765:PMC
755:doi
743:103
682:doi
660:333
524:doi
502:333
306:of
288:Sun
199:β€4
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1037:21
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552:^
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324:,
205:π¨
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1363:c
1358:b
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1331:e
1326:d
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1316:b
1305:d
1302:c
1299:b
1278:g
1273:f
1268:e
1263:d
1258:c
1253:b
1241:c
1236:b
1214:d
1210:c
1207:b
1121:d
1118:c
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236:)
233:E
230:M
223:J
220:M
202:R
195:J
192:R
149:h
144:d
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