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Current system
20006+1657
BPM 1921


Nearby doubles
15' : 20005+1643
BPMA225

18' : 20012+1642
BPM1929

21' : 20019+1651
BPM1938

22' : 20020+1702
BPM1942

23' : 19599+1637
J 1203

23' : 20020+1707
BPM1941

23' : 20001+1636
J 1204AB

24' : 20004+1720
SLE 676

27' : 19596+1720
BPM1912

30' : 20006+1727
BPM1923

34' : 20001+1731
H 4 100AB

36' : 19584+1713
BPM1890

37' : 20031+1656
BPM1957

37' : 20002+1733
SLE 675

40' : 20000+1736
SMR 7

40' : 19582+1719
BPM1889

40' : 20001+1737
S 730AB

41' : 19578+1652
BPM1873

41' : 20032+1712
BPM1960

43' : 19580+1636
BPM1882AB

43' : 19585+1627
ARY 60

43' : 19579+1637
BPM1878

44' : 19582+1630
BU 149AB

45' : 19575+1652
BPM1866

46' : 20035+1715
TDT1941

47' : 19586+1734
TDT1892



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20006+1657 BPM 1921

 
 
20h 00m 33.28s +16° 57' 05.9" P.A. 221.00 sep 78.6 mag 14.18,14.69
 
 
Coord 2000 20006+1657 Discov num BPM1921 Comp Coord arcsec 2000 20 00 33.28 +16 57 05.9
Date first 1995 Date last 2015 Obs 9
Pa first 221 Pa last 220.7 P.A. Now (θ) 220.7°
Sep first 78.5 Sep last 78.593 Sep. Now (ρ) 78.593"
Mag pri 14.18 Mag sec 14.69 delta mag (ΔM) 0.51 Spectral class
Pri motion ra -021 Sec motion ra -014
Pri motion dec -017 Sec motion dec -018
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.262 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagitta Gaia DR2 1820240576389490816
 
 
WDS 20006+1657 BPM 1921 : NOTES
 
 
discov_num notes refcode
BPM1921 [PM2000] 2128288 + [PM2000] 2127828. Gvr2010
 
 
REFERENCES
 
 
refcode metd author reference
Gvr2010 Pa - Gavras, P. Sinachopoulos, D., Le Campion, J.F., & Cucourant, C. 2010A&A...521A 4G
Gvr2010 +T A&A 521, A4, 2010
Gvr2010 (Note: mean measures from AC2000.2, CdC2000, USNO-A2.0, Yellow Sky, and M2000
Gvr2010 catalogs, spanning years ~1900-2000)
 
 
DISCOVERER
 
 
idgroup discov author
1 BPM Bordeaux PM2000 catalogue (main catalog: separation < 2')
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20006+1657 BPM1921 1997 2 221 78.5 14.27 14.50 NV 200033.28+165705.9
20006+1657 BPM1921 2001 3 221 78.6 14.27 14.50 NV 200033.28+165705.9
20006+1657 BPM1921 2010 4 221 78.2 14.18 14.69 NV 200033.28+165705.9
20006+1657 BPM1921 2015 5 221 78.6 14.18 14.69 NV 200033.28+165705.9

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20006+1657 BPM 1921 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20006+1657 BPM 1921 : MEASURES
 
 
No records found.

 
 
WDS 20006+1657 : VIRTUAL EYEPIECE
 
 

20006+1657 BPM1921A mag 14.18 20006+1657 BPM1921B sep 77.2 P.A. 219.40 mag 14.69 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20006+1657 : ALADIN DSS IMAGE @ 20h 00m 33.28s +16° 57' 05.9"
 
 
 
 
WDS 20006+1657 BPM 1921 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20006+1657 BPM1921 distance=0' 20005+1643 BPMA225 distance=15' 20012+1642 BPM1929 distance=18' 20019+1651 BPM1938 distance=21' 20020+1702 BPM1942 distance=22' 19599+1637 J 1203 distance=23' 20020+1707 BPM1941 distance=23' 20001+1636 J 1204AB distance=23' 20004+1720 SLE 676 distance=24' 20001+1636 J 1204BC distance=24' 19596+1720 BPM1912 distance=27' 20006+1727 BPM1923 distance=30' 20001+1731 H 4 100BC distance=34' 20001+1731 H 4 100AB distance=34' 20001+1731 H 4 100AC distance=34' 20001+1731 BU 1477CD distance=35' 20001+1731 BU 1477CE distance=35' 19584+1713 BPM1890 distance=36' 20031+1656 BPM1957 distance=37' 20002+1733 SLE 675 distance=37' 20000+1736 SMR 7 distance=40' 19582+1719 BPM1889 distance=40' 20001+1737 S 730AB distance=40' 20001+1737 S 730AD distance=40' 20001+1737 HO 638AE distance=40' 20001+1737 S 730AC distance=40' 19578+1652 BPM1873 distance=41' 19580+1636 BPM1883BC distance=41' 20032+1712 BPM1960 distance=41' 20001+1737 S 730BC distance=42' 19580+1636 BPM1882AB distance=43' 19585+1627 ARY 60 distance=43' 19579+1637 BPM1878 distance=43' 19582+1630 BU 149AB distance=44' 19575+1652 BPM1866 distance=45' 19582+1630 BU 149BC distance=45' 20035+1715 TDT1941 distance=46' 19586+1734 TDT1892 distance=47' 19593+1613 BPM1908 distance=48' 20034+1631 BPM1964 distance=48' 19597+1610 BPM1917 distance=49' 20036+1635 SLE 678 distance=49' 20041+1704 ENG 69BC distance=49' 20041+1704 STTA202BG distance=49' 19573+1713 BPM1858 distance=50' 20036+1634 BPM1966 distance=50' 20040+1704 BPM1970 distance=50' 20041+1704 BUP 202CH distance=51' 20041+1704 STT 592AB distance=52' 20041+1704 STT 592AC distance=52' 20041+1704 BUP 202AD distance=52' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20006+1657 BPM1921 221 78.6
Show 20005+1643 BPMA225 98 247.3 15
Show 20012+1642 BPM1929 144 31.6 18
Show 20019+1651 BPM1938 82 118.4 21
Show 20020+1702 BPM1942 288 114.8 22
Show 19599+1637 J 1203 352 2.1 23
Show 20020+1707 BPM1941 347 105.5 23
Show 20001+1636 J 1204 AB 235 40.2 23
Show 20004+1720 SLE 676 228 12.6 24
Show 20001+1636 J 1204 BC 267 2.0 24
Show 19596+1720 BPM1912 304 92.0 27
Show 20006+1727 BPM1923 2 117.5 30
Show 20001+1731 H 4 100 BC 306 97.1 34
Show 20001+1731 H 4 100 AB 265 23.9 34
Show 20001+1731 H 4 100 AC 297 112.6 34
Show 20001+1731 BU 1477 CD 208 27.0 35
Show 20001+1731 BU 1477 CE 114 45.9 35
Show 19584+1713 BPM1890 114 102.3 36
Show 20031+1656 BPM1957 81 96.1 37
Show 20002+1733 SLE 675 310 7.1 37
Show 20000+1736 SMR 7 264 4.0 40
Show 19582+1719 BPM1889 8 28.2 40
Show 20001+1737 S 730 AB 14 112.8 40
Show 20001+1737 S 730 AD 198 41.1 40
Show 20001+1737 HO 638 AE 283 2.7 40
Show 20001+1737 S 730 AC 338 78.6 40
Show 19578+1652 BPM1873 25 117.6 41
Show 19580+1636 BPM1883 BC 23 106.5 41
Show 20032+1712 BPM1960 348 93.0 41
Show 20001+1737 S 730 BC 237 68.6 42
Show 19580+1636 BPM1882 AB 61 110.2 43
Show 19585+1627 ARY 60 123 42.1 43
Show 19579+1637 BPM1878 123 113.4 43
Show 19582+1630 BU 149 AB 278 127.0 44
Show 19575+1652 BPM1866 222 96.5 45
Show 19582+1630 BU 149 BC 202 8.1 45
Show 20035+1715 TDT1941 165 1.1 46
Show 19586+1734 TDT1892 38 1.2 47
Show 19593+1613 BPM1908 18 88.0 48
Show 20034+1631 BPM1964 97 46.3 48
Show 19597+1610 BPM1917 53 76.2 49
Show 20036+1635 SLE 678 334 13.2 49
Show 20041+1704 ENG 69 BC 24 152.0 49
Show 20041+1704 STTA202 BG 230 181.4 49
Show 19573+1713 BPM1858 212 120.0 50
Show 20036+1634 BPM1966 301 16.8 50
Show 20040+1704 BPM1970 183 36.6 50
Show 20041+1704 BUP 202 CH 185 95.6 51
Show 20041+1704 STT 592 AB 291 163.2 52
Show 20041+1704 STT 592 AC 335 217.0 52
Show 20041+1704 BUP 202 AD 3 89.1 52

 
 
WDS 20006+1657 : COMPONENTS
 
 
  A
B pa=219.4°
sep=77.16"
 
 
20006+1657 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 200033.28+165705.9 Mag 14.18 PmRA -21.00
PmDE -17.0
 
 
20006+1657 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200029.86+165606.3 Mag 14.69 PmRA -14.00
PmDE -18.0 Calc delta mag 0.51 Calc coord yes