SIMBAD references

2004AJ....127.2344J - Astron. J., 127, 2344-2351 (2004/April-0)

The history of the mysterious eclipses of KH 15D: Asiago observatory, 1967-1982.

JOHNSON J.A. and WINN J.N.

Abstract (from CDS):

We are gathering archival observations to determine the photometric history of the unique and unexplained eclipses of the pre-main-sequence star KH 15D. Here we present a light curve from 1967 to 1982, based on photographic plates from Asiago Observatory. During this time, the system alternated periodically between bright and faint states, as observed today. However, the bright state was 0.9 mag brighter than the modern value, and the fractional variation between bright and faint states (ΔI=0.7 mag) was smaller than observed today (3.5 mag). A possible explanation for these findings is that the system contains a second star that was previously blended with the eclipsing star but is now completely obscured.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - Galaxy: Open Clusters and Associations: Individual: NGC Number: NGC 2264 - stars: individual (KH 15D) - Stars: Pre-Main-Sequence - Techniques: Photometric

Status at CDS:  

Simbad objects: 57

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2020.06.06-07:07:42

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