Observations Requested of Exoplanet Proxima Centauri b

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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Observations Requested of Exoplanet Proxima Centauri b

文章 PTS » 週五 17 3月, 2017 09:08

AAVSO Alert Notice 571

March 16, 2017

Observations Requested of Exoplanet Proxima Centauri b

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. The expected
duration of the transit is less than two hours long. The transit
depth is expected to be 5 mmag. However, because Proxima Centauri
itself is a flare star, there may be large variations in the light

These observations are most suitable for those with prior
experience conducting exoplanet observing.

The Southern hemisphere target Proxima Centauri has a magnitude
range of 11.1 - 11.3 V.

Please contact Dennis Conti, AAVSO’s Exoplanet Section Chair, at
dennis@astrodennis.com if you are interested in participating in
such observations and would like the predicted transit times, or
if you have any further questions.

Coordinates for Proxima Centauri (V645 Cen):
R.A. 14 29 42.95 Dec. -62 40 46.2 (2000.0)

Charts: Charts with a comparison star sequence for Proxima Centauri
may be created using the AAVSO Variable Star Plotter (VSP) at

This campaign is being monitored on the AAVSO Observing Campaigns
webpage at https://www.aavso.org/observing-campaigns.

This AAVSO Alert Notice was compiled by Elizabeth O. Waagen from
material supplied by Dr. Dennis Conti.



An Alert Notice archive is available at the following URL:

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https://www.aavso.org/observation-notif ... ertnotices


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