NEXXUS 2 - The database for Nearby X-ray and extreme UV emitting Stars

Star Page     -     NS 0645-1642 B   GJ 244 B   Sirius B

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ROSAT Survey Field Image Browser     SIMBAD entry

Star Information:

RA (2000.0)	DE (2000.0)	μ [ "/yr ]	θ [ ° ]	Spectral Type	B	V	Distance [ pc ]
06 45 08.88	-16 42 56.68	1.339	204.1	DA	8.41	8.44	2.63

ROSAT All-Sky Survey (RASS):

Detection Number	Count Rate	Background	Exposure Time	Likelihood	HR1	HR2	log Lx
1RXS J064509.3-164241	12.73 ± 0.2187	0.00074	272	9999	-0.99 ± 0	-0.55 ± 4.92	28.8

ROSAT Position Sensitive Proportional Counter with filter (PSPCF):

Detection Number	Sequence Id	Count Rate	Background	Likeli	OAX	Exposure Time	Observation Date	HR1	HR2	Images	log Lx
2RXF J064508.6-164240	200422 n00.002	1.122 ± 0.0188	0.00026	9999	1	3183	1991-03-15 to 1991-04-20	-1 ± 0	0 ± 0	rgb rgbd	27.26

ROSAT High Resolution Imager (HRI):

Detection Number	Sequence Id	Count Rate	SNR	OAX	Exposure Time	Observation Date	Images	log Lx
1RXH J064509.2-164242	160058 n00.011	2.583 ± 0.0247	93.4	2	4209	1991-03-25 to 1991-03-25	rgb rgbd	28.71

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 J0645-164	06 45 09.19	-16 42 43.7	3.3 ± 0.04	9.37 ± 0.08	99.9	39.3	99.9

ROSAT Wide Field Camera (WFC) Pointed Observations:

Source	RA (2000.0)	DE (2000.0)	Sequence ID	Count Rate	OAX	Significance	Filter	Observation Date
1	06 45 09.42	- 16 42 27.3	200422 w00_p1	1.65327 ± 0.15464	0.5	21.67	P1	1991-03-15T06:00

EUVE All-Sky Survey:

Detection Number	RA (2000.0)	DE (2000.0)	58-174 Å Count Rate	156-234 Å Count Rate	368-590 Å Count Rate	519-742 Å Count Rate
EUVE J0645-167	06 45 13	-16 42.0	7.297 ± 0.078	1.854 ± 0.045

Joint EUVE-ROSAT Detections:

Detection Number	RA (2000.0)	DE (2000.0)	58-174 Å Count Rate
EUVE J0645-167	06 45 11	-16 42 43	6.67

Einstein Imaging Proportional Counter (IPC):

Detection Number	RA (2000.0)	DE (2000.0)	Sequence ID	Count Rate	Exposure Time	SNR	OAX	Observation Date	Images	Data
2E 0642.9-1639	06 45 10.8	-16 42 37	837 1730	0.229 ± 0.021	1918.6	10.8	1.1	1979-09-25 to 1979-09-26	gif FITS	Events
2E 0643.0-1639	06 45 11.1	-16 42 06	6962 1730	0.425 ± 0.019	3419.9	22	3.7	1980-03-23 to 1980-03-23	gif FITS	Events
2E 0642.9-1639	06 45 10.5	-16 42 03	6963 1730	0.524 ± 0.021	3133.6	24.7	3.7	1980-03-22 to 1980-03-22	gif FITS	Events
2E 0643.0-1639	06 45 12.0	-16 42 41	10183 1730	0.311 ± 0.013	6226.1	23.3	9.1	1980-10-04 to 1980-10-04	gif FITS	Events
2E 0643.0-1639	06 45 11.6	-16 42 41	10184 1730	0.325 ± 0.013	7179.5	25.8	8.9	1980-10-04 to 1980-10-04	gif FITS	Events

Einstein High Resolution Imager (HRI):

RA (2000.0)	DE (2000.0)	Sequence ID	Count Rate	Exposure Time	SNR	Observation Date	Images	Data
06 45 10	-16 42 31	946 1	2.239 ± 0.01597	15919.67	140.19	1979-03-18 to 1979-03-18	gif FITS	Events

Last modified on Tuesday, 28 October 2008.   C. Liefke | Impressum