AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  RZ UMi  
AAVSO UID
000-BFP-147 (3034 observations)  
Constellation
Ursa Minor Sequence
J2000.0
14 54 26.13 +86 43 37.5  (223.60888 +86.72708) Search nearby
B1950.0 15 06 05.71 +86 55 25.7
Proper motion
RA: -5.6 +/- 1.5 mas/yDec: 1.1 +/- 0.9 mas/ySource: UCAC4
Galactic coord. 121.002 +29.928
Other names

(Internal only)
1RXS J145418.3+864338 2MASS J14542607+8643373 AP J14542607+8643373
ASASSN-V J145425.80+864337.7 GSC 04642-00832 Gaia DR3 1727679731874374272
SVS 2310 TIC 160082094  
(Not logged in)  Add name
Variability type
EW/KW
Spectral type --
Mag. range
11.66 - 12.43 V
Discoverer --
Epoch
05 Apr 2002 (HJD 2452370.3766) Ephemeris
Outburst --
Period 0.33734895 d  (8.096375 h)
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Ashchepkau, Mikhail Subtype A, varying amplitudes of maxima and width of the primary and secondary minima (2025SerAJ.210...33G).
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Grozdanovic, M.; et al., 2025, Light Curve Analysis of W-UMa Type Binary
Systems RZ UMi, OQ UMa, LP UMa
2025SerAJ.210...33G
2 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 1
Main source
2022yCat.1355....0G
3 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
4 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
5 van Cauteren, P.; et al., 2006, Photometric elements and stellar parameters
for the contact binary RZ UMi
2006PZ.....26....2V
6 V.P.Goranskij, Perem. Zvezdy Supplement 4, N20, 169, 1982. 1982PZP.....4..169G
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
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 = 10.92H = 10.56K = 10.45J - K = 0.47
AllWISE W1 = 9.98W2 = 10.01W3 = 9.91W4 = 9.52W1 - W2 = -0.03W3 - W4 = 0.38
APASS-DR9 B = 12.61V = 11.94g' = 12.21r' = 11.67i' = 11.50B - V = 0.67
GALEX-DR5 FUV = 22.19NUV = 17.60FUV - NUV = 4.59
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
Click document name to open or save. Browser plug-in or other software may be required for viewing.
2 Phase plot Ashchepkau, Mikhail 2026-04-08 03:43 UTC Phase plot from Gaia DR3, ASAS-SN, AAVSO and TESS data.
1 Phase plot zoomed Ashchepkau, Mikhail 2026-04-08 03:37 UTC Phase plot from Gaia DR3, ASAS-SN, AAVSO and TESS data, zoomed to primary eclipse.
(Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Ashchepkau, Mikhail 2026-04-08 03:35 UTC Range derived from Gaia DR3, ASAS-SN and AAVSO data, period from Gaia DR3, ASAS-SN, AAVSO and TESS data. Epoch from 2006PZ.....26....2V.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.