2002A&A...391..659F


Query : 2002A&A...391..659F

2002A&A...391..659F - Astronomy and Astrophysics, volume 391659-663 (2002/8-4)

EK Draconis: Long-term photometry on Sonneberg Sky-Patrol plates.

FROEHLICH H.-E., TSCHAEPE R., RUEDIGER G. and STRASSMEIER K.G.

Abstract (from CDS):

We performed long-term photometry of the young solar analog EK Draconis (HD 129333) using 1030 blue-sensitive Sky-Patrol plates taken at Sonneberg Observatory from 1958 onwards. A secular dimming of 0.0057±0.0008mag/y beginning around 1975 was found. Hence, the recent trend first observed with Automatic Photoelectric Telescopes (APTs) is confirmed and traced back to the mid-seventies.

Abstract Copyright: ∼

Journal keyword(s): stars: activity - stars: individual: HD 129333 (EK Dra) - stars: late-type - stars: rotation - stars: variables: other

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1080 0
2 V* LQ Hya BY* 09 32 25.5683895648 -11 11 04.692242760 9.316 8.761 7.891 7.288 6.815 K1Vp 480 0
3 HD 128492 PM* 14 34 30.4870888392 +63 12 56.986869996   8.58 7.45     K2 18 0
4 HD 128815 SB* 14 36 17.7762129360 +63 27 56.015269704   8.45 8.07     A3 20 0
5 V* EK Dra BY* 14 39 00.2104038120 +64 17 29.979649860   8.243 7.604     G5VFe-0.7CH-1(k) 500 0
6 HD 129390 PM* 14 39 22.8325047312 +64 09 14.058306000   7.94 7.54     F2 43 0
7 HD 130460 PM* 14 45 16.6194557928 +65 19 47.928801612   7.70 7.22     F5 34 0
8 V* FQ Dra a2* 14 46 01.6119864816 +64 37 32.805642072   8.13 8.21     ~ 15 0
9 HD 130914 SB* 14 47 40.6006040592 +65 15 06.826192524   7.98 7.71     A5 19 0

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