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Latest Details
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Name
  AR UMa  
AAVSO UID
000-BBS-123 (19995 observations)  
Constellation
Ursa Major Sequence
J2000.0
11 15 44.59 +42 58 22.4  (168.93579 +42.97289) Search nearby
B1950.0 11 12 58.49 +43 14 44.8
Galactic coord. 167.455 +64.966
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXH J111544.4+425822 2MASS J11154459+4258225 AAVSO 1110+43
ATO J168.9353+42.9728 CMC15 J111544.5+425822 Downes AR UMa
GALEX J111544.4+425823 LINEAR 970699 SDSS J111544.56+425822.4
SON 7744 TIC 43215375 USNO-B1.0 1329-0276504
WD J111544.59+425822.43 WISEA J111544.51+425822.4 XMMOM J111544.6+425823
ZTF18acsujbc    
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Variability type
AM
Spectral type DA+M6Ve
Mag. range
13.9 - 16.7 V
Discoverer Cuno Hoffmeister
Epoch
12 May 2023 (HJD 2460077.3768) Ephemeris
Outburst --
Period 0.080500743 d  (115.921070 min)
Rise/eclipse dur. --
Remarks
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0		 2017PASP..129j4502K
2 L. Palaversa, Z. Ivezic, L. Eyer et al., 2013, arXiv:1308.0357
[astro-ph.GA]		 2013arXiv1308.0357P
3 Morgan, D. P.; West, A. A.; Garcés, A.; et al., 2012, The Effects of Close
Companions (and Rotation) on the Magnetic Activity of M Dwarfs		 2012AJ....144...93M
4 B.T. Gaensicke et al., 2009, arXiv:0905.3476v1 [astro-ph.SR] 2009arXiv0905.3476G
5 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
6 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
7 Szkody P. et al., 2006, AJ 131, 937 2006AJ....131..973S
8 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
9 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
10 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 1994ApJ...426..288R
11 L.Meinunger, W.Wenzel, VSS 7, H.4, 389, 1968. 1968VeSon...7..385M
12 C.Hoffmeister, AN 287, H.4, 169, 1963. 1963AN....287..169H
External Links
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Location    Go   
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 14.15H = 13.60K = 13.27J - K = 0.88
AllWISE W1 = 13.12W2 = 12.88W1 - W2 = 0.24
SDSS-DR12 u = 15.44g = 15.51r = 15.75i = 15.57z = 15.16u - g = -0.07r - i = 0.18
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 11 15 44.59 +42 58 22.4 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
6 Otero, Sebastian Alberto 2025-11-12 19:02 UTC Epoch from AAVSO data.
5 Otero, Sebastian Alberto 2023-05-05 18:19 UTC Spectral type (white dwarf) from 2012AJ....144...93M. Gaia DR3 position. Range derived from ASAS-SN data.
4 Admin, VSX 2017-12-15 12:43 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-05-28 01:31 UTC Update from [2009arXiv0905.3476G].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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