Skip to main content

exoplanet

Alert Notice 583: Photometry requested for Red Dots campaign

June 16, 2017:  John Strachan (Queen Mary University of London) and Dr. Guillem Anglada-Escude (Queen Mary University of London) have requested AAVSO assistance in the monitoring of three M dwarf stars as part of the Red Dots campaign.

Alert Notice 579: KIC 8462852 optical dipping event

May 24, 2017: T. Boyajian (Louisiana State University) et al. reported in ATel #10405 that an optical dip is underway in KIC 8462852 (Boyajian's Star, Tabby's Star) beginning on 2017 May 18 UT. Tentative signs of small dips had been seen beginning April 24, and enhanced monitoring had begun at once at Fairborn Observatory (Tennessee State University). Photometry and spectroscopy from there on May 18 and 19 UT showed a dip underway.

Alert Notice 571: Observations Requested of Exoplanet Proxima Centauri b

March 16, 2017: Dr. Karen Collins (Vanderbilt University) has requested ground-based, follow-up observations of recently discovered exoplanet Proxima Centauri b. This exoplanet is a suspected Earth-size planet orbiting in the habitable zone of our nearest stellar neighbor, Proxima Centauri (V645 Cen). There exists a rough ephemeris of this target based on radial velocity measurements, so the predicted mid-transit times can vary +/- 6 hours. Therefore, it is requested that observations be as long as possible.

Special Notice #1: Exoplanet Transit Campaign for Southern Hemisphere

December 8, 2005

Dr. Greg Laughlin (UCO Lick Observatory/Transitsearch.org) and Dr. David Blank (James Cook University) are conducting a photometric monitoring campaign for exoplanet transits of HD 13445. The windows for possible transit are:

December 11 20:51 - December 12 05:00 (UT)

December 27 14:58 - December 27 23:36 (UT)

HD 1334 is located at RA 02:10:14.4 and Dec. -50:50:0.5 (J2000).

Exoplanet Section

    

Tags: 

Special Notice #1: Exoplanet Transit Campaign for Southern Hemisphere

December 8, 2005: Dr. Greg Laughlin (UCO Lick Observatory/Transitsearch.org) and Dr. David Blank (James Cook University) are conducting a photometric monitoring campaign for exoplanet transits of HD 13445. The windows for possible transit are:
 
December 11 20:51 - December 12 05:00 (UT)
December 27 14:58 - December 27 23:36 (UT)
 
HD 1334 is located at RA 02:10:14.4 and Dec. -50:50:0.5 (J2000).
 

Alert Notice 350: Exoplanet Transit Search For GJ 436

June 6, 2007

Object: 1137+27 GJ 436
    RA (2000)       DEC           V         B-V    V-Rc   Rc-Ic    V-Ic
11:42:11.58 +26:42:17.7  10.702  1.489  1.073  1.349  2.462

INTRODUCTION

Dr. Greg Laughlin (UC Santa Cruz/Lick Observatory & Transitsearch.org) has requested help in observing GJ 436 to look for transits of previously detected and undetected extrasolar planets.

Alert Notice 370: GJ 436 Extrasolar Planet Transit Campaign

February 12, 2008

REQUEST FOR OBSERVATIONS OF EXTRASOLAR PLANET SYSTEM GJ 436
------------------------------------------------------------------
1. BACKGROUND

Observing Campaign: Exoplanet Transit Search for GJ 436

 

 

June 6, 2007

 

Artist Conception
An artist's illustration of GJ 436b (NASA)

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484