NGC 772 - Misplaced Pages

(Redirected from Arp 78) Galaxy in the constellation Aries

NGC 772
NGC 772 imaged by the Gemini Observatory
Observation data (J2000 epoch)
Constellation	Aries
Right ascension	01 59 19.5443
Declination	+19° 00′ 27.751″
Redshift	0.008236
Heliocentric radial velocity	2469 ± 2 km/s
Distance	105.7 ± 7.5 Mly (32.42 ± 2.29 Mpc)
Apparent magnitude (V)	11.1
Characteristics
Type	SA(s)b
Size	~204,000 ly (62.56 kpc) (estimated)
Apparent size (V)	7.2′ × 4.3′
Other designations
IRAS 01565+1845, Arp 78, UGC 1466, MCG +03-06-011, PGC 7525, CGCG 461-018

NGC 772 (also known as Arp 78 or the Fiddlehead Galaxy) is a large unbarred spiral galaxy approximately 106 million light-years away in the constellation Aries. It was discovered on 29 November 1785 by German-British astronomer William Herschel.

Characteristics

At around 200,000 light years in diameter, NGC 772 is somewhat larger than the Milky Way Galaxy, and is surrounded by several satellite galaxies – including the dwarf elliptical, NGC 770 – whose tidal forces on the larger galaxy have likely caused the emergence of a single elongated outer spiral arm that is much more developed and stronger than the others arms. Halton Arp includes NGC 772 in his Atlas of Peculiar Galaxies as Arp 78, where it is described as a "Spiral galaxy with a small high-surface brightness companion".

NGC 772 probably has a H II nucleus, but it may be a transitional object.

Supernovae

Three supernovae have been observed in NGC 772:

SN 2003hl (Type II, mag. 16.5) was discovered by LOTOSS (Lick Observatory and Tenagra Observatory Supernova Searches) on 20 August 2003.
SN 2003iq (Type II, mag. 16.4) was discovered by Jean-Marie Llapasset on 8 October 2003. This supernova was visible at the same time as SN 2003hl, which was discovered 7 weeks prior.
SN 2022qze (type II-P, mag. 19.89) was discovered by Pan-STARRS on 8 August 2022.

Gallery

RGB image of the galaxy NGC 772 and dwarf galaxy NGC 770 (top center) interacting, from the Liverpool Telescope
Center of the galaxy imaged by the Hubble Space Telescope.

References

"Strong-Arming a Galaxy". NOIRLab. Retrieved 30 January 2023.
^ "Results for object NGC 0772". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 2006-11-25.
Stoyan, Ronald; Schurig, Stephan (2014). interstellarum Deep Sky Atlas. Erlangen: Cambridge University Press; Oculum-Verlag GmbH. ISBN 978-1-107-50338-0. OCLC 920437579.
Seligman, Courtney. "NGC 772". Celestial Atlas. Retrieved 17 August 2024.
Rhee, M. H.; van Albada, T. S. (February 1996). "Short WSRT HI observations of spiral galaxies". Astronomy and Astrophysics Supplement. 115: 407–437. Bibcode:1996A&AS..115..407R.
Ho, Luis C.; Filippenko, Alexei V.; Sargent, Wallace L. W. (October 1997). "A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies". Astrophysical Journal Supplement. 112 (2): 315–390. arXiv:astro-ph/9704107. Bibcode:1997ApJS..112..315H. doi:10.1086/313041. S2CID 17086638.
Moore, M.; Li, W.; Boles, T. (2003). "Supernovae 2003hg, 2003hh, 2003hi, 2003hj, 2003hk, 2003hl". International Astronomical Union Circular (8184): 2. Bibcode:2003IAUC.8184....2M.
"SN 2003hl". Transient Name Server. IAU. Retrieved 14 December 2024.
Yamaoka, H.; Ayani, K. (2003). "Supernovae 2003hl and 2003iq in NGC 772". International Astronomical Union Circular (8219): 2. Bibcode:2003IAUC.8219....2Y.
"NGC 772, Supernovae 2003hl and 2003iq". www.kopernik.org. Retrieved 2022-04-08.
"SN 2003iq". Transient Name Server. IAU. Retrieved 14 December 2024.
Bishop, David. "Supernovae 2003hl and 2003iq in NGC 772". Rochester Astronomy. Retrieved 14 December 2024.
"SN 2022qze". Transient Name Server. IAU. Retrieved 14 December 2024.
"A Rival to the Milky Way". ESA Hubble. Retrieved 11 November 2019.

External links

Spiral Galaxy NGC 772; Elliptical Galaxy NGC 770
NGC 772 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
NGC 772 (Arp 78) at Constellation Guide

Portals:

v t e Astronomical catalogs
NGC	NGC 767 NGC 768 NGC 769 NGC 770 NGC 771 NGC 772 NGC 773 NGC 774 NGC 775 NGC 776 NGC 777
PGC	PGC 7521 PGC 7522 PGC 7523 PGC 7524 PGC 7525 PGC 7526 PGC 7527 PGC 7528 PGC 7529
UGC	UGC 1462 UGC 1463 UGC 1464 UGC 1465 UGC 1466 UGC 1467 UGC 1468 UGC 1469 UGC 1470
Arp	Arp 72 Arp 73 Arp 74 Arp 75 Arp 76 Arp 77 Arp 78 Arp 79 Arp 80 Arp 81 Arp 82 Arp 83 Arp 84

v t e New General Catalogue 500 to 999
500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999
Astronomical catalog List of NGC objects 1–1000

New General Catalogue 500 to 999

Constellation of Aries

Stars

Bayer	α (Hamal) β (Sheratan) γ (Mesarthim) δ (Botein) ε ζ η θ ι κ λ μ ν ξ ο π ρ ρ ρ σ τ τ
Flamsteed	1 4 7 10 11 14 15 16 19 20 21 23 26 27 29 30 31 33 35 36 38 39 (Lilii Borea) 40 41 (Bharani) 47 49 50 51 52 53 54 55 56 59 60 62 64 65 66 54 Cet 85 Cet
Variable	TZ UX VZ (16 Tri)
HR	577 728 803 952 999
HD	12661 20367
Other	BD+20°307 HIP 14810 HAT-P-25 Teegarden's Star WASP-11/HAT-P-10 WD 0145+234

Exoplanets	α Arietis b HD 12661 b c HIP 14810 b c d Teegarden's Star b c WASP-11b/HAT-P-10b

Galaxies

NGC	677 680 691 694 695 716 765 770 772 781 803 817 820 821 871 877 900 901 903 904 918 935 938 972 990 992 1024 1134 1156 1168
Other	1ES 0229+200 3C 79 4C +28.07 AO 0235+164 IC 167 IC 1801 PSO J0309+27 Segue 2 UGC 2140

Galaxy clusters	MS 0302+17

Astronomical events	GRB 060218

Characteristics

Supernovae

Gallery

See also

References

External links