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Latest Details
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Name
  IY UMa  
AAVSO UID
000-BBR-614 (18778 observations)  
Constellation
Ursa Major Sequence
J2000.0
10 43 56.75 +58 07 31.9  (160.98646 +58.12553) Search nearby
B1950.0 10 40 47.46 +58 23 17.3
Proper motion
RA: -52.0 +/- 18.6 mas/yDec: -1.7 +/- 18.5 mas/ySource: UCAC4
Galactic coord. 149.761 +51.844
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1SXPS J104356.8+580733 2MASS J10435672+5807319 AAVSO 1037+58
APOP 59130+0001736 ASASSN-V J104356.57+580731.2 CSS_J104356.7+580732
Downes IY UMa GALEX J104356.6+580731 GALEX J104356.6+580732
GALEX J104356.7+580731 GALEX J104356.7+580732 GSC2.3 N7P6001736
GUVV-2 J104356.6+580732.1 PSO J104356.642+580731.836 SDSS J104356.71+580731.8
SDSS J104356.72+580731.9 SDSS J104356.73+580731.8 SDSS J104356.73+580731.9
Tmz V085 Tmz V85 UCAC4 741-049899
UDXS J104356.66+580731.9 URAT1 741-227204 USNO-A2.0 1425-07542823
USNO-B1.0 1481-0247132 WD J104356.75+580731.92 WISE J104356.68+580732.0
WISEA J104356.67+580731.9 XPM 296-0379568  
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Variability type
UGSU+E
Spectral type --
Mag. range
13.0 - 18.9 V
Discoverer Kesao Takamizawa (1998)
Epoch
--
Outburst --
Period 0.07390897 d  (106.42892 min)
Rise/eclipse dur. --
Remarks
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1 Schmeer, Patrick Gaia DR2 parallax 5.6027 ± 0.1030 mas (distance 177.7 ± 3.3 pc).
2 Admin, VSX Orbital period = 1.77 hours [2009arXiv0901.3177S].
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Bakowska, K.; Olech, A., 2015, Hot Spot in Eclipsing Dwarf Nova IY Ursae
Majoris during Quiescence and Normal Outburst
2015AcA....65..351B
2 B.T. Gaensicke et al., 2009, arXiv:0905.3476v1 [astro-ph.SR] 2009arXiv0905.3476G
3 T. Kato et al., 2009, arXiv:0905.1757v1 [astro-ph.SR] 2009arXiv0905.1757K
4 P. Szkody et al., 2009, arXiv:0901.3177v1 [astro-ph.GA] 2009arXiv0901.3177S
5 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
6 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
7 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
8 IAU Circ No.7349, 2000. 2000IAUC.7349....1B
External Links
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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 = 15.72H = 15.10K = 14.87J - K = 0.86
AllWISE W1 = 14.60W2 = 14.31W1 - W2 = 0.29
GALEX-DR5 FUV = 17.63NUV = 17.82FUV - NUV = -0.19
SDSS-DR12 u = 17.77g = 17.54r = 17.64i = 17.62z = 17.19u - g = 0.23r - i = 0.01
Images
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Supporting Documents
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Campaigns/Programs
 HST/COS CV program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
6 Schmeer, Patrick 2019-05-01 13:54 UTC Gaia DR2 position.
5 Schmeer, Patrick 2018-03-17 23:10 UTC UCAC4 position. Discoverer's given name added.
4 Billiaert, Bruno 2016-01-24 13:34 UTC Discoverer and period from 2015AcA....65..351B. Magnitude range from AAVSO data.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-05-14 00:47 UTC Update from [2009arXiv0905.1757K].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.