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Current system
18521+1635
BPM 871


Nearby doubles
12' : 18525+1644
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COU 720

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BPM 853

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44' : 18551+1644
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STF2400AB

52' : 18539+1719
LDS5868

61' : 18551+1717
COU 721AB

62' : 18481+1656
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BPM 899

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BPM 897

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ARN 75



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

18521+1635 BPM 871

 
 
18h 52m 07.65s +16° 34' 37.2" P.A. 188.00 sep 76.6 mag 13.09,14.71
 
 
Coord 2000 18521+1635 Discov num BPM 871 Comp Coord arcsec 2000 18 52 07.65 +16 34 37.2
Date first 1994 Date last 2015 Obs 9
Pa first 188 Pa last 187.7 P.A. Now (θ) 187.7°
Sep first 76.4 Sep last 76.566 Sep. Now (ρ) 76.566"
Mag pri 13.09 Mag sec 14.71 delta mag (ΔM) 1.62 Spectral class
Pri motion ra -011 Sec motion ra -011
Pri motion dec -002 Sec motion dec -019
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.774
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules Gaia DR2 4510987078513617920
 
 
WDS 18521+1635 BPM 871 : NOTES
 
 
discov_num notes refcode
BPM 871 [PM2000] 1615013 + [PM2000] 1614900. 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
18521+1635 BPM 871 1999 2 188 76.4 13.10 14.77 NV 185207.65+163437.2
18521+1635 BPM 871 2001 3 188 76.4 13.10 14.77 NV 185207.65+163437.2
18521+1635 BPM 871 2010 4 188 76.5 13.09 14.71 NV 185207.65+163437.2
18521+1635 BPM 871 2015 5 188 76.5 13.09 14.71 NV 185207.65+163437.2

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

 
 
WDS 18521+1635 BPM 871 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18521+1635 BPM 871 : MEASURES
 
 
No records found.

 
 
WDS 18521+1635 : VIRTUAL EYEPIECE
 
 

18521+1635 BPM 871A mag 13.09 18521+1635 BPM 871B sep 76.5 P.A. 187.40 mag 14.71 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18521+1635 : ALADIN DSS IMAGE @ 18h 52m 07.65s +16° 34' 37.2"
 
 
 
 
WDS 18521+1635 BPM 871 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18521+1635 BPM 871 distance=0' 18525+1644 BPM 875 distance=12' 18535+1619 HEI 263 distance=25' 18515+1700 BPMA 65 distance=28' 18503+1626 BPM 859 distance=28' 18520+1705 COU 720 distance=31' 18498+1639 BPM 853 distance=35' 18517+1600 BPM 870 distance=36' 18497+1629 BRT1311 distance=36' 18496+1621 BPM 849 distance=39' 18533+1557 BPM 879 distance=42' 18502+1603 RAO 399 distance=43' 18551+1644 WFC 216 distance=44' 18504+1554 BPM 860 distance=48' 18489+1615 STF2400AB distance=51' 18489+1615 STF2400AD distance=51' 18489+1615 STF2400AC distance=51' 18489+1615 STF2400A,BC distance=51' 18489+1615 STF2400BC distance=51' 18539+1719 LDS5868 distance=52' 18551+1717 COU 721AB distance=61' 18551+1717 COU 721AC distance=61' 18481+1656 BPM 834 distance=62' 18533+1737 BPM 878 distance=65' 18500+1733 BPM 855 distance=66' 18561+1709 BPM 894 distance=67' 18481+1557 BPM 835 distance=69' 18504+1739 KPP 859 distance=70' 18476+1655 J 2678 distance=70' 18567+1657 BPM 899 distance=70' 18564+1710 BPM 897 distance=71' 18472+1655 ARN 75 distance=72' 18551+1537 BPM 887 distance=73' 18506+1525 BPM 862 distance=74' 18565+1555 J 1278AB distance=74' 18565+1555 J 1278AC distance=74' 18573+1644 BPM 903 distance=75' 18484+1542 BPMA 61 distance=76' 18509+1751 BPM 867 distance=79' 18478+1725 BPM 832 distance=81' 18566+1545 BPM 898 distance=81' 18500+1519 YSC 12AB distance=82' 18500+1519 LLO 16AC distance=82' 18500+1519 LLO 16AD distance=82' 18491+1524 BPM 842 distance=83' 18540+1516 L 40 distance=84' 18466+1659 STF2385AB distance=84' 18466+1659 MAD 10AC distance=84' 18464+1641 HEI 261 distance=84' 18477+1539 BPM 831 distance=85' 18569+1546 L 42 distance=85' 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 18521+1635 BPM 871 188 76.6
Show 18525+1644 BPM 875 352 114.0 12
Show 18535+1619 HEI 263 353 6.3 25
Show 18515+1700 BPMA 65 297 191.5 28
Show 18503+1626 BPM 859 264 110.0 28
Show 18520+1705 COU 720 194 4.5 31
Show 18498+1639 BPM 853 163 102.8 35
Show 18517+1600 BPM 870 335 90.7 36
Show 18497+1629 BRT1311 204 4.3 36
Show 18496+1621 BPM 849 245 101.4 39
Show 18533+1557 BPM 879 224 33.0 42
Show 18502+1603 RAO 399 140 2.8 43
Show 18551+1644 WFC 216 88 12.0 44
Show 18504+1554 BPM 860 174 80.3 48
Show 18489+1615 STF2400 AB 159 9.7 51
Show 18489+1615 STF2400 AD 157 0.4 51
Show 18489+1615 STF2400 AC 161 10.9 51
Show 18489+1615 STF2400 A,BC 160 11.0 51
Show 18489+1615 STF2400 BC 201 1.0 51
Show 18539+1719 LDS5868 158 10.3 52
Show 18551+1717 COU 721 AB 302 3.3 61
Show 18551+1717 COU 721 AC 149 17.5 61
Show 18481+1656 BPM 834 51 119.5 62
Show 18533+1737 BPM 878 78 38.6 65
Show 18500+1733 BPM 855 290 63.8 66
Show 18561+1709 BPM 894 18 95.9 67
Show 18481+1557 BPM 835 272 105.6 69
Show 18504+1739 KPP 859 12 7.3 70
Show 18476+1655 J 2678 27 5.4 70
Show 18567+1657 BPM 899 142 109.6 70
Show 18564+1710 BPM 897 82 98.9 71
Show 18472+1655 ARN 75 26 65.3 72
Show 18551+1537 BPM 887 40 68.2 73
Show 18506+1525 BPM 862 276 60.3 74
Show 18565+1555 J 1278 AB 98 2.3 74
Show 18565+1555 J 1278 AC 106 26.2 74
Show 18573+1644 BPM 903 24 112.7 75
Show 18484+1542 BPMA 61 54 281.7 76
Show 18509+1751 BPM 867 187 46.3 79
Show 18478+1725 BPM 832 244 111.2 81
Show 18566+1545 BPM 898 20 61.1 81
Show 18500+1519 YSC 12 AB 35 0.5 82
Show 18500+1519 LLO 16 AC 19 11.1 82
Show 18500+1519 LLO 16 AD 225 15.7 82
Show 18491+1524 BPM 842 278 103.7 83
Show 18540+1516 L 40 6 12.9 84
Show 18466+1659 STF2385 AB 30 5.5 84
Show 18466+1659 MAD 10 AC 26 71.9 84
Show 18464+1641 HEI 261 102 2.4 84
Show 18477+1539 BPM 831 340 117.9 85
Show 18569+1546 L 42 35 1.8 85

 
 
WDS 18521+1635 : COMPONENTS
 
 
  A
B pa=187.4°
sep=76.51"
 
 
18521+1635 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 185207.65+163437.2 Mag 13.09 PmRA -11.00
PmDE -2.0
 
 
18521+1635 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185206.97+163321.3 Mag 14.71 PmRA -11.00
PmDE -19.0 Calc delta mag 1.62 Calc coord yes