NGC 6820 and NGC 6823
Reflection nebula and star cluster in the constellation Vulpecula
You can help expand this article with text translated from the corresponding article in French. Click [show] for important translation instructions.
- View a machine-translated version of the French article.
- Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
- Consider adding a topic to this template: there are already 6,211 articles in the main category, and specifying
|topic=will aid in categorization. - Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
- You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is
Content in this edit is translated from the existing French Wikipedia article at [[:fr:NGC 6820]]; see its history for attribution. - You may also add the template
{{Translated|fr|NGC 6820}}to the talk page. - For more guidance, see Wikipedia:Translation.
| Emission nebula | |
|---|---|
 NGC 6820/NGC 6823 | |
| Observation data: J2000.0 epoch | |
| Right ascension | 19h 42m 27.92s[1] |
| Declination | +23° 05′ 14.7″[1] |
| Distance | 6,000[2] ly |
| Apparent dimensions (V) | 40 arcmins |
| Constellation | Vulpecula |
| Designations | Nebula (NGC 6820, Sh2-86) |
| See also: Lists of nebulae | |
NGC 6820 is a small reflection nebula near the open cluster NGC 6823 in Vulpecula. The reflection nebula and cluster are embedded in a large faint emission nebula called Sh 2-86. The whole area of nebulosity is often referred to as NGC 6820.[3]
M27, the Dumbbell Nebula, is found three degrees to the east, and α Vulpeculae three degrees to the west.
Open star cluster NGC 6823 is about 50 light-years across and lies about 6,000 light-years away. The center of the cluster formed about two million years ago and is dominated in brightness by a host of bright young blue stars. Outer parts of the cluster contain even younger stars.[2] It forms the core of the Vulpecula OB1 stellar association.[4]
Image gallery
-
NGC 6820/NGC 6823 – Courtesy: Hunter Wilson
References
- ^ a b "NGC 6820". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2008-07-03.
- ^ a b Nemiroff, R.; Bonnell, J., eds. (4 October 2004). "NGC 6823: Cloud Sculpting Star Cluster". Astronomy Picture of the Day. NASA. Retrieved 2008-07-03.
- ^ "Sharpless 86". Retrieved 2017-11-19.
- ^ Billot, N.; Noriega-Crespo, A.; Carey, S.; Guieu, S.; Shenoy, S.; Paladini, R.; Latter, W. (2010). "Young Stellar Objects and Triggered Star Formation in the Vulpecula Ob Association". The Astrophysical Journal. 712 (2): 797. arXiv:1003.0866. Bibcode:2010ApJ...712..797B. doi:10.1088/0004-637X/712/2/797. S2CID 28961682.
External links
Wikimedia Commons has media related to NGC 6820.
Wikimedia Commons has media related to NGC 6823.
- National Optical Observatory Archived 2014-07-01 at the Wayback Machine
- v
- t
- e
New General Catalogue 6500 to 6999
- 6500
- 6501
- 6502
- 6503
- 6504
- 6505
- 6506
- 6507
- 6508
- 6509
- 6510
- 6511
- 6512
- 6513
- 6514
- 6515
- 6516
- 6517
- 6518
- 6519
- 6520
- 6521
- 6522
- 6523
- 6524
- 6525
- 6526
- 6527
- 6528
- 6529
- 6530
- 6531
- 6532
- 6533
- 6534
- 6535
- 6536
- 6537
- 6538
- 6539
- 6540
- 6541
- 6542
- 6543
- 6544
- 6545
- 6546
- 6547
- 6548
- 6549
- 6550
- 6551
- 6552
- 6553
- 6554
- 6555
- 6556
- 6557
- 6558
- 6559
- 6560
- 6561
- 6562
- 6563
- 6564
- 6565
- 6566
- 6567
- 6568
- 6569
- 6570
- 6571
- 6572
- 6573
- 6574
- 6575
- 6576
- 6577
- 6578
- 6579
- 6580
- 6581
- 6582
- 6583
- 6584
- 6585
- 6586
- 6587
- 6588
- 6589
- 6590
- 6591
- 6592
- 6593
- 6594
- 6595
- 6596
- 6597
- 6598
- 6599
- 6600
- 6601
- 6602
- 6603
- 6604
- 6605
- 6606
- 6607
- 6608
- 6609
- 6610
- 6611
- 6612
- 6613
- 6614
- 6615
- 6616
- 6617
- 6618
- 6619
- 6620
- 6621
- 6622
- 6623
- 6624
- 6625
- 6626
- 6627
- 6628
- 6629
- 6630
- 6631
- 6632
- 6633
- 6634
- 6635
- 6636
- 6637
- 6638
- 6639
- 6640
- 6641
- 6642
- 6643
- 6644
- 6645
- 6646
- 6647
- 6648
- 6649
- 6650
- 6651
- 6652
- 6653
- 6654
- 6655
- 6656
- 6657
- 6658
- 6659
- 6660
- 6661
- 6662
- 6663
- 6664
- 6665
- 6666
- 6667
- 6668
- 6669
- 6670
- 6671
- 6672
- 6673
- 6674
- 6675
- 6676
- 6677
- 6678
- 6679
- 6680
- 6681
- 6682
- 6683
- 6684
- 6685
- 6686
- 6687
- 6688
- 6689
- 6690
- 6691
- 6692
- 6693
- 6694
- 6695
- 6696
- 6697
- 6698
- 6699
- 6700
- 6701
- 6702
- 6703
- 6704
- 6705
- 6706
- 6707
- 6708
- 6709
- 6710
- 6711
- 6712
- 6713
- 6714
- 6715
- 6716
- 6717
- 6718
- 6719
- 6720
- 6721
- 6722
- 6723
- 6724
- 6725
- 6726
- 6727
- 6728
- 6729
- 6730
- 6731
- 6732
- 6733
- 6734
- 6735
- 6736
- 6737
- 6738
- 6739
- 6740
- 6741
- 6742
- 6743
- 6744
- 6745
- 6746
- 6747
- 6748
- 6749
- 6750
- 6751
- 6752
- 6753
- 6754
- 6755
- 6756
- 6757
- 6758
- 6759
- 6760
- 6761
- 6762
- 6763
- 6764
- 6765
- 6766
- 6767
- 6768
- 6769
- 6770
- 6771
- 6772
- 6773
- 6774
- 6775
- 6776
- 6777
- 6778
- 6779
- 6780
- 6781
- 6782
- 6783
- 6784
- 6785
- 6786
- 6787
- 6788
- 6789
- 6790
- 6791
- 6792
- 6793
- 6794
- 6795
- 6796
- 6797
- 6798
- 6799
- 6800
- 6801
- 6802
- 6803
- 6804
- 6805
- 6806
- 6807
- 6808
- 6809
- 6810
- 6811
- 6812
- 6813
- 6814
- 6815
- 6816
- 6817
- 6818
- 6819
- 6820
- 6821
- 6822
- 6823
- 6824
- 6825
- 6826
- 6827
- 6828
- 6829
- 6830
- 6831
- 6832
- 6833
- 6834
- 6835
- 6836
- 6837
- 6838
- 6839
- 6840
- 6841
- 6842
- 6843
- 6844
- 6845
- 6846
- 6847
- 6848
- 6849
- 6850
- 6851
- 6852
- 6853
- 6854
- 6855
- 6856
- 6857
- 6858
- 6859
- 6860
- 6861
- 6862
- 6863
- 6864
- 6865
- 6866
- 6867
- 6868
- 6869
- 6870
- 6871
- 6872
- 6873
- 6874
- 6875
- 6876
- 6877
- 6878
- 6879
- 6880
- 6881
- 6882
- 6883
- 6884
- 6885
- 6886
- 6887
- 6888
- 6889
- 6890
- 6891
- 6892
- 6893
- 6894
- 6895
- 6896
- 6897
- 6898
- 6899
- 6900
- 6901
- 6902
- 6903
- 6904
- 6905
- 6906
- 6907
- 6908
- 6909
- 6910
- 6911
- 6912
- 6913
- 6914
- 6915
- 6916
- 6917
- 6918
- 6919
- 6920
- 6921
- 6922
- 6923
- 6924
- 6925
- 6926
- 6927
- 6928
- 6929
- 6930
- 6931
- 6932
- 6933
- 6934
- 6935
- 6936
- 6937
- 6938
- 6939
- 6940
- 6941
- 6942
- 6943
- 6944
- 6945
- 6946
- 6947
- 6948
- 6949
- 6950
- 6951
- 6952
- 6953
- 6954
- 6955
- 6956
- 6957
- 6958
- 6959
- 6960
- 6961
- 6962
- 6963
- 6964
- 6965
- 6966
- 6967
- 6968
- 6969
- 6970
- 6971
- 6972
- 6973
- 6974
- 6975
- 6976
- 6977
- 6978
- 6979
- 6980
- 6981
- 6982
- 6983
- 6984
- 6985
- 6986
- 6987
- 6988
- 6989
- 6990
- 6991
- 6992
- 6993
- 6994
- 6995
- 6996
- 6997
- 6998
- 6999
