NEXXUS 2 - The database for Nearby X-ray and extreme UV emitting Stars
Star Page - NS 2246+4420 GJ 873 LHS 3853 G 216-016 HIP 112460 BD+43 4305 EV Lac
Back to Search Back to Main Page Introduction
ROSAT Survey Field Image Browser SIMBAD entry
Star Information:
| RA (2000.0) | DE (2000.0) | μ [ "/yr ] | θ [ ° ] | Radial Velocity | Spectral Type | U | B | V | Rc | Ic | J | Ks | H | Distance [ pc ] |
| 22 46 49.80 | +44 20 02.54 | 0.841 | 236.9 | -1.5 | M3.5e | 12.94 | 11.45 | 10.09 | 9.05 | 7.55 | 6.11 | 5.53 | 5.28 | 5.05 |
XMM-Newton Pointed Observations:
| Detection Number | Sequence Id | Observation Time | Likelihood | log Lx | ESAC Links |
| 2XMM J224649.6+442001 | 0111450101 1 | 2001-06-03T07:52 to 2001-06-03T16:46 | 999.9999 | 28.69 | Postcard Server Observing Log |
| Detector | Filter | Count Rate | Exposure Time | Likelihood | OAX | HR1 | HR2 | HR3 | HR4 | log Lx |
| M2 | Medium | 2.74273 ± 0.01008 | 28449 | 999.9999 | 1.103 | 0.446 ± 0.004 | -0.36 ± 0.004 | -0.794 ± 0.004 | -0.863 ± 0.013 | 28.69 |
ROSAT All-Sky Survey (RASS):
| Detection Number | Count Rate | Background | Exposure Time | Likelihood | HR1 | HR2 | log Lx |
| 1RXS J224650.7+442008 | 5.384 ± 0.09837 | 0.00057 | 560 | 9999 | -0.16 ± 0.01 | 0.03 ± 0.02 | 28.99 |
ROSAT Position Sensitive Proportional Counter (PSPC):
| Detection Number | Sequence Id | Count Rate | Background | Likeli | OAX | Exposure Time | Observation Time | HR1 | HR2 | Images | log Lx |
| 2RXP J224650.4+442008 | 200984 n00.007 | 9.626 ± 0.0624 | 0.00101 | 9999 | 0 | 2553 | 1992-07-13 to 1992-07-17 | 0.03 ± 0.01 | 0.05 ± 0.01 | rgb rgbd | 29.25 |
| 2RXP J224648.0+442033 | 201583 n00.005 | 1.022 ± 0 | 0.00122 | 3670 | 40 | 2013 | 1993-07-08 to 1993-07-09 | -0.25 ± 0.01 | -0.01 ± 0.02 | rgb rgbd | 28.27 |
| 2RXP J224648.0+442017 | 201584 n00.005 | 1.263 ± 0 | 0.00082 | 5936 | 40 | 2277 | 1993-07-09 to 1993-07-10 | -0.29 ± 0.01 | -0.11 ± 0.02 | rgb rgbd | 28.36 |
| 2RXP J224648.5+442046 | 201585 n00.005 | 0.8558 ± 0 | 0.00093 | 3875 | 41 | 2632 | 1993-07-10 to 1993-07-11 | -0.35 ± 0.01 | -0.15 ± 0.03 | rgb rgbd | 28.2 |
| 2RXP J224647.9+442017 | 201586 n00.006 | 1.066 ± 0 | 0.00069 | 6803 | 41 | 3530 | 1993-07-11 to 1993-07-12 | -0.37 ± 0.01 | -0.17 ± 0.02 | rgb rgbd | 28.29 |
| 2RXP J224653.2+442018 | 201587 n00.004 | 0.7845 ± 0 | 0.00071 | 5458 | 41 | 4463 | 1993-07-12 to 1993-07-13 | -0.34 ± 0.01 | -0.11 ± 0.02 | rgb rgbd | 28.16 |
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 J2246+442 | 22 46 51.15 | +44 20 11.8 | 0.12 ± 0.01 | 0.15 ± 0.01 | 24.2 | 27.1 | 36.4 |
ROSAT Wide Field Camera (WFC) Pointed Observations:
| Source | RA (2000.0) | DE (2000.0) | Sequence ID | Count Rate | OAX | Significance | Filter | Observation Date |
| 1 | 22 46 48.13 | + 44 20 19.8 | 200984 w00_s1a | 0.21052 ± 0.02892 | 0.4 | 16.6 | S1 | 1992-07-13T12:00 |
| 3 | 22 46 49.81 | + 44 20 06.0 | 201583 w00_s2b | 0.04659 ± 0.01091 | 40.5 | 7.35 | S2 | 1993-07-09T00:00 |
| 1 | 22 46 48.68 | + 44 20 25.2 | 201584 w00_s2b | 0.05348 ± 0.01065 | 40.4 | 9.11 | S2 | 1993-07-10T00:00 |
| 1 | 22 46 48.28 | + 44 20 13.3 | 201585 w00_s2b | 0.04518 ± 0.00959 | 40.3 | 8.54 | S2 | 1993-07-11T00:00 |
| 1 | 22 46 48.62 | + 44 20 31.8 | 201586 w00_s2b | 0.06032 ± 0.00964 | 40.4 | 11.56 | S2 | 1993-07-12T00:00 |
| 1 | 22 46 48.71 | + 44 20 10.9 | 201587 w00_s2b | 0.05407 ± 0.00765 | 40.3 | 12.47 | S2 | 1993-07-13T00:00 |
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 J2246+443 | 22 46 46 | +44 19.9 | 0.107 ± 0.013 | 0.037 ± 0.014 |
Last modified on Tuesday, 28 October 2008. C. Liefke | Impressum