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

Star Page     -     Gl 841A         LTT 8767 Sm 94

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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
21 57 41	- 51 00.4	0.3746	184.7	-8.1	M2.5	10.36	1.51	1.31	9.31	61.63 ± 2.67	16.23

ROSAT All-Sky Survey (RASS):

Detection Number	Count Rate	Background	Exposure Time	Likeli	HR1	HR2	log Lx
1RXS J215740.9-510027	1.077 ± 0.08115	0.001343	375	471	-0.18 ± 0.07	-0.2 ± 0.11	29.31

ROSAT High Resolution Imager (HRI):

Detection Number	Sequence Id	Count Rate	SNR	OAX	Exposure Time	Observation Date	Images	log Lx
1RXH J215741.6-510017	201936 a01.001	0.3309 ± 0.00947	29.5	8	3719	950514 to 950517	rgb rgbd	29.4
1RXH J215741.0-510016	201936 n00.001	0.2217 ± 0.0172	11.5	8	783	941110 to 941110	rgb rgbd	29.22

ROSAT Wide Field Camera (WFC) All-Sky Survey:

Detection Number	RA (2000.0)	DE (2000.0)	S1 Count Rate	S2 Count Rate	Significance S1	Significance S2	Significance
2RE J2157-505	21 57 38.57	-50 59 45.6	0.03 ± 0.006	0.039 ± 0.007	8.5	9.7	12.6

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