NEXXUS - The database for Nearby X-ray and extreme UV emitting Stars

Star Page     -     Gl 721         ALF~Lyr

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ROSAT Survey Field Image Browser      Simbad Objects

Star Information:

RA (2000.0)	DE (2000.0)	Mu	Theta	Radial Velocity	Spectral Type	V	B-V	R-I	MV	Pi	Distance
18 36 57	+ 38 47.1	0.3508	35	-13.7	A0 V	0.03	0	0	0.58	128.93 ± 0.55	7.76

ROSAT High Resolution Imager (HRI):

Detection Number	Sequence Id	Count Rate	SNR	OAX	Exposure Time	Observation Date	Images	log Lx
1RXH J183656.2+384659	141850 n00.001	0.09408 ± 0.00509	17.3	2	3683	920321 to 920321	rgb rgbd	28.21
1RXH J183656.1+384700	141905 n00.002	0.08325 ± 0.0035	22.2	2	6805	920916 to 920918	rgb rgbd	28.16
1RXH J183656.3+384659	142032 n00.001	0.1113 ± 0.00511	17.4	1	4261	950415 to 950415	rgb rgbd	28.28
1RXH J183656.6+384657	200012 m01.001	0.08054 ± 0.00661	10.5	1	1863	910322 to 910322	rgb rgbd	28.14
1RXH J183656.3+384658	200012 n00.002	0.09371 ± 0.0037	23.4	1	6880	910320 to 910322	rgb rgbd	28.21

Last modified on Thursday, 23 October 2003.   C. Liefke | Impressum