NGC 4833

NGC 4833
NGC 4833 by Hubble Space Telescope; 3.5′ view Credit: NASA/STScI/WikiSky
Observation data (J2000 epoch)
Class	VIII^[1]
Constellation	Musca
Right ascension	12^h 59^m 33.92^s^[2]
Declination	–70° 52′ 35.4″^[2]
Distance	21.5 kly (6.6 kpc)^[3]
Apparent magnitude (V)	+7.79^[4]
Apparent dimensions (V)	13′.5
Physical characteristics
Mass	7005409999999999999♠4.10×10⁵^[3] M_☉
Radius	42 ly^[5]
Metallicity	$\begin{smallmatrix}\left[{Fe}/{H}\right]\end{smallmatrix}$ = –1.71^[6] dex
Estimated age	12.54 Gyr^[6]
Other designations	GCl 21,^[4] Lacaille I.4 Dunlop 164, Bennett 56

NGC 4833 is a globular cluster discovered by Abbe Lacaille during his 1751-1752 journey to South Africa, and catalogued in 1755. It was subsequently observed and catalogued by James Dunlop and Sir John Herschel whose instruments could resolve it into individual stars.

The globular cluster is situated in the very southerly constellation Musca at a distance of 21,200 light years from Earth. It is partially obscured by a dusty region of the galactic plane. After corrections for the reddening by dust, evidence was obtained that it is in the order of 2 billion years older than globular clusters M5 or M92.

References

↑ Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin (849): 11–14, Bibcode:1927BHarO.849...11S.
1 2 Goldsbury, Ryan; et al. (December 2010), "The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters", The Astronomical Journal 140 (6): 1830–1837, arXiv:1008.2755, Bibcode:2010AJ....140.1830G, doi:10.1088/0004-6256/140/6/1830.
1 2 Boyles, J.; et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal 742 (1): 51, arXiv:1108.4402, Bibcode:2011ApJ...742...51B, doi:10.1088/0004-637X/742/1/51.
1 2 "SIMBAD Astronomical Object Database". Results for NGC 4833. Retrieved 2006-11-17.
↑ distance × tan( diameter_angle / 2 ) = 42 ly. radius
1 2 Forbes, Duncan A.; Bridges, Terry (May 2010), "Accreted versus in situ Milky Way globular clusters", Monthly Notices of the Royal Astronomical Society 404 (3): 1203–1214, arXiv:1001.4289, Bibcode:2010MNRAS.404.1203F, doi:10.1111/j.1365-2966.2010.16373.x.

CCD Photometry of the Globular Cluster NGC 4833 and Extinction Near the Galactic Plane, Melbourne et al., 25 September 2000, Astrophysical Journal

External links

NGC 4833 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Coordinates: 12^h 59^m 34.98^s, −70° 52′ 28.6″

Musca constellation

Stars

Stars of Musca

Bayer	α β γ δ ε ζ¹ ζ² η θ ι¹ ι² λ μ

Variable	R S T Y RT SY TU TV UU BO EZ FH GQ GR GS GT KY KZ LS MP

HR	4387 4389 4401 4406 4425 4448 4485 4538 4549 4596 4597 4601 4604 4611 4614 4615 4664 4669 4692 4710 4720 4769 4804 4841 4862 4907 4966 4977 4994 5000 5002 5012 5030 5049 5069 5093 5119

HD	98671 100546 101805 103482 105822 111232 112410 113919

Other	GRS 1124-683 LP 145-141 NGC 5189 nucleus PSR J1141-6545 2S 1254-690

List

Other objects

Caldwell catalogue

List	C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109

See also	Messier Catalogue Catalogue of Nebulae and Clusters of Stars New General Catalogue Index Catalogue Revised New General Catalogue Herschel 400 Catalogue

Book:Caldwell catalogue Category:Caldwell objects Portal:Astronomy Commons:Caldwell objects

New General Catalogue 4500 to 4999

NGC 4500 NGC 4501 NGC 4502 NGC 4503 NGC 4504 NGC 4505 NGC 4506 NGC 4507 NGC 4508 NGC 4509 NGC 4510 NGC 4511 NGC 4512 NGC 4513 NGC 4514 NGC 4515 NGC 4516 NGC 4517 NGC 4518 NGC 4519 NGC 4520 NGC 4521 NGC 4522 NGC 4523 NGC 4524 NGC 4525 NGC 4526 NGC 4527 NGC 4528 NGC 4529 NGC 4530 NGC 4531 NGC 4532 NGC 4533 NGC 4534 NGC 4535 NGC 4536 NGC 4537 NGC 4538 NGC 4539 NGC 4540 NGC 4541 NGC 4542 NGC 4543 NGC 4544 NGC 4545 NGC 4546 NGC 4547 NGC 4548 NGC 4549 NGC 4550 NGC 4551 NGC 4552 NGC 4553 NGC 4554 NGC 4555 NGC 4556 NGC 4557 NGC 4558 NGC 4559 NGC 4560 NGC 4561 NGC 4562 NGC 4563 NGC 4564 NGC 4565 NGC 4566 NGC 4567 NGC 4568 NGC 4569 NGC 4570 NGC 4571 NGC 4572 NGC 4573 NGC 4574 NGC 4575 NGC 4576 NGC 4577 NGC 4578 NGC 4579 NGC 4580 NGC 4581 NGC 4582 NGC 4583 NGC 4584 NGC 4585 NGC 4586 NGC 4587 NGC 4588 NGC 4589 NGC 4590 NGC 4591 NGC 4592 NGC 4593 NGC 4594 NGC 4595 NGC 4596 NGC 4597 NGC 4598 NGC 4599 NGC 4600 NGC 4601 NGC 4602 NGC 4603 NGC 4604 NGC 4605 NGC 4606 NGC 4607 NGC 4608 NGC 4609 NGC 4610 NGC 4611 NGC 4612 NGC 4613 NGC 4614 NGC 4615 NGC 4616 NGC 4617 NGC 4618 NGC 4619 NGC 4620 NGC 4621 NGC 4622 NGC 4623 NGC 4624 NGC 4625 NGC 4626 NGC 4627 NGC 4628 NGC 4629 NGC 4630 NGC 4631 NGC 4632 NGC 4633 NGC 4634 NGC 4635 NGC 4636 NGC 4637 NGC 4638 NGC 4639 NGC 4640 NGC 4641 NGC 4642 NGC 4643 NGC 4644 NGC 4645 NGC 4646 NGC 4647 NGC 4648 NGC 4649 NGC 4650 NGC 4651 NGC 4652 NGC 4653 NGC 4654 NGC 4655 NGC 4656 NGC 4657 NGC 4658 NGC 4659 NGC 4660 NGC 4661 NGC 4662 NGC 4663 NGC 4664 NGC 4665 NGC 4666 NGC 4667 NGC 4668 NGC 4669 NGC 4670 NGC 4671 NGC 4672 NGC 4673 NGC 4674 NGC 4675 NGC 4676 NGC 4677 NGC 4678 NGC 4679 NGC 4680 NGC 4681 NGC 4682 NGC 4683 NGC 4684 NGC 4685 NGC 4686 NGC 4687 NGC 4688 NGC 4689 NGC 4690 NGC 4691 NGC 4692 NGC 4693 NGC 4694 NGC 4695 NGC 4696 NGC 4697 NGC 4698 NGC 4699 NGC 4700 NGC 4701 NGC 4702 NGC 4703 NGC 4704 NGC 4705 NGC 4706 NGC 4707 NGC 4708 NGC 4709 NGC 4710 NGC 4711 NGC 4712 NGC 4713 NGC 4714 NGC 4715 NGC 4716 NGC 4717 NGC 4718 NGC 4719 NGC 4720 NGC 4721 NGC 4722 NGC 4723 NGC 4724 NGC 4725 NGC 4726 NGC 4727 NGC 4728 NGC 4729 NGC 4730 NGC 4731 NGC 4732 NGC 4733 NGC 4734 NGC 4735 NGC 4736 NGC 4737 NGC 4738 NGC 4739 NGC 4740 NGC 4741 NGC 4742 NGC 4743 NGC 4744 NGC 4745 NGC 4746 NGC 4747 NGC 4748 NGC 4749 NGC 4750 NGC 4751 NGC 4752 NGC 4753 NGC 4754 NGC 4755 NGC 4756 NGC 4757 NGC 4758 NGC 4759 NGC 4760 NGC 4761 NGC 4762 NGC 4763 NGC 4764 NGC 4765 NGC 4766 NGC 4767 NGC 4768 NGC 4769 NGC 4770 NGC 4771 NGC 4772 NGC 4773 NGC 4774 NGC 4775 NGC 4776 NGC 4777 NGC 4778 NGC 4779 NGC 4780 NGC 4781 NGC 4782 NGC 4783 NGC 4784 NGC 4785 NGC 4786 NGC 4787 NGC 4788 NGC 4789 NGC 4790 NGC 4791 NGC 4792 NGC 4793 NGC 4794 NGC 4795 NGC 4796 NGC 4797 NGC 4798 NGC 4799 NGC 4800 NGC 4801 NGC 4802 NGC 4803 NGC 4804 NGC 4805 NGC 4806 NGC 4807 NGC 4808 NGC 4809 NGC 4810 NGC 4811 NGC 4812 NGC 4813 NGC 4814 NGC 4815 NGC 4816 NGC 4817 NGC 4818 NGC 4819 NGC 4820 NGC 4821 NGC 4822 NGC 4823 NGC 4824 NGC 4825 NGC 4826 NGC 4827 NGC 4828 NGC 4829 NGC 4830 NGC 4831 NGC 4832 NGC 4833 NGC 4834 NGC 4835 NGC 4836 NGC 4837 NGC 4838 NGC 4839 NGC 4840 NGC 4841 NGC 4842 NGC 4843 NGC 4844 NGC 4845 NGC 4846 NGC 4847 NGC 4848 NGC 4849 NGC 4850 NGC 4851 NGC 4852 NGC 4853 NGC 4854 NGC 4855 NGC 4856 NGC 4857 NGC 4858 NGC 4859 NGC 4860 NGC 4861 NGC 4862 NGC 4863 NGC 4864 NGC 4865 NGC 4866 NGC 4867 NGC 4868 NGC 4869 NGC 4870 NGC 4871 NGC 4872 NGC 4873 NGC 4874 NGC 4875 NGC 4876 NGC 4877 NGC 4878 NGC 4879 NGC 4880 NGC 4881 NGC 4882 NGC 4883 NGC 4884 NGC 4885 NGC 4886 NGC 4887 NGC 4888 NGC 4889 NGC 4890 NGC 4891 NGC 4892 NGC 4893 NGC 4894 NGC 4895 NGC 4896 NGC 4897 NGC 4898 NGC 4899 NGC 4900 NGC 4901 NGC 4902 NGC 4903 NGC 4904 NGC 4905 NGC 4906 NGC 4907 NGC 4908 NGC 4909 NGC 4910 NGC 4911 NGC 4912 NGC 4913 NGC 4914 NGC 4915 NGC 4916 NGC 4917 NGC 4918 NGC 4919 NGC 4920 NGC 4921 NGC 4922 NGC 4923 NGC 4924 NGC 4925 NGC 4926 NGC 4927 NGC 4928 NGC 4929 NGC 4930 NGC 4931 NGC 4932 NGC 4933 NGC 4934 NGC 4935 NGC 4936 NGC 4937 NGC 4938 NGC 4939 NGC 4940 NGC 4941 NGC 4942 NGC 4943 NGC 4944 NGC 4945 NGC 4946 NGC 4947 NGC 4948 NGC 4949 NGC 4950 NGC 4951 NGC 4952 NGC 4953 NGC 4954 NGC 4955 NGC 4956 NGC 4957 NGC 4958 NGC 4959 NGC 4960 NGC 4961 NGC 4962 NGC 4963 NGC 4964 NGC 4965 NGC 4966 NGC 4967 NGC 4968 NGC 4969 NGC 4970 NGC 4971 NGC 4972 NGC 4973 NGC 4974 NGC 4975 NGC 4976 NGC 4977 NGC 4978 NGC 4979 NGC 4980 NGC 4981 NGC 4982 NGC 4983 NGC 4984 NGC 4985 NGC 4986 NGC 4987 NGC 4988 NGC 4989 NGC 4990 NGC 4991 NGC 4992 NGC 4993 NGC 4994 NGC 4995 NGC 4996 NGC 4997 NGC 4998 NGC 4999

Astronomical catalog List of NGC objects

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NGC 4833

See also

References

External links