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Doubles in session


Current system
00210+2647
CHE 9


Nearby doubles
5' : 00206+2712
LDS3154

14' : 00220+2711
HDS 48

16' : 00220+2706
CHE 13

17' : 00215+2658
HJ 1020

18' : 00214+2729
CHE 11

18' : 00209+2655
CHE 8

20' : 00220+2726
CHE 12

20' : 00220+2659
CHE 14

25' : 00208+2737
CHE 7

31' : 00232+2710
CHE 16

32' : 00214+2744
CHE 10AB

34' : 00235+2709
CHE 18

35' : 00230+2735
TDS 16

40' : 00237+2702
CHE 20

42' : 00199+2633
CHE 4

44' : 00195+2634
CHE 3AB

47' : 00241+2652
TDS1441

47' : 00243+2731
CHE 21

56' : 00250+2726
CHE 24

57' : 00250+2653
CHE 25

57' : 00247+2740
LDS3164

58' : 00204+2617
CHE 6

59' : 00243+2634
CHE 22

60' : 00234+2624
CHE 17AB

63' : 00177+2630
BUP 5AB

64' : 00236+2621
CHE 19



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 00210+2647 CHE 9 : NOTES
 
 
discov_num notes refcode
CHE 9 Chevalier's measure was correct, but his published (dx,dy) predict Che1908
different (rho,theta) than published. This was apparently due to a
typographic error in dx, which should be +0'.0708. Chevalier applied
his declination offset from the plate center in the wrong direction,
leading to an error of over 25' in the coordinates. The image for the
pair at the corrected coordinates is elongated on the Aladin image;
due to uncertain relative proper motion it's impossible to tell
whether his rho and theta values are correct. Hrt2012b
 
 
REFERENCES
 
 
refcode metd author reference
Che1908 Pa - Chevalier, Stanislas .
Che1908 Shanghai Obs. Zo-Se 4, 60, 1908 (corrections described in Bko2011c and Hrt2012b)
Hrt2012b E2 - Hartkopf, W.I. ...................
Hrt2012b Webb Soc., Double Star Circ. 20, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 CHE Chevalier, Stanislas
30 HRT Hartkopf, W.I., McAlister, H.A., Mason, B.D., ten Brummelaar, T.A., Roberts, J.C.,
30 HRT Jr., Turner, N.H., & Wilson, J.W.
31 HRT Hartkopf, W.I., W.I., Mason, B.D., Gies, D.R., ten Brummelaar, T.,
31 HRT McAlister, H.A., Moffat, A.F.J., Shara, M.M., & Wallace, D.J.
36 HRT Mason, B.D., Martin, C., Hartkopf, W.I., Barry, D.J., Germain, M.E.,
36 HRT Douglass, G.G., Worley, C.E., ten Brummelaar, T.A., et al.
37 HRT Hartkopf, W.I., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., Turner, N.H.,
37 HRT ten Brummelaar, T.A., Prieto, C.M., Ling, J.F., & Franz, O.G.
77 HRT Mason, B.D., Henry, T.J., Soderblom. D.R., Hartkopf, W.I., Holdenreid, E.R.,
77 HRT Rafferty, T.J., & Urban, S.E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00210+2647 CHE 9 1907 1 68 4.6 10.11 13.20 002100.37+264741.8
00210+2647 CHE 9 2000 2 336 5.5 10.11 13.20 N 002100.82+271305.5
00210+2647 CHE 9 2015 3 340 4.7 10.11 13.20 N 002100.82+271305.5

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