Subaru telescope photographed 103P/Hartley

Oct 22, 2010
Image of 103P/Hartley obtained with the Suprime-Cam on Subatru Telescope

Scientists used Suprime-Cam at Subaru Telescope to catch the comet 103P/Hartley after long shut down of the telescope.

This summer underwent primary mirror recoating, modification to its top, overhauling of many actuators, and so on. Since the distance to the from the is small and the apparent movement of the comet on the sky is large, non-sidereal tracking was used during this observation based on the orbital parameters of the comet.

This image is composed from the dataset of three different filters; g'-band (480nm), r'-band (620nm), and z'-band (900nm), and color coding is allotted for blue, green, and red, respectively. Since the comet was moving from the lower right to the upper left compared with the background stars, each background star appears as triple points with three colors along the direction of the comet movement.

Shouts of joy arose from the observers as well as the night crews on site when the telescope slew to the calculated position and the comet's tail appeared on a monitor. The observation crew is looking forward to obtaining even more striking results with an innovative instrument that will be installed on Subaru Telescope in near future. What is that instrument? Stay tuned.

Explore further: Transition discs in Ophiuchus and Taurus

Related Stories

Image: Comet Hartley 2 approaches Earth

Sep 30, 2010

A pale green interloper among the stars of Cassiopeia, Comet Hartley 2 shines in this four-minute exposure taken on the night of Sept. 28, 2010, by NASA astronomer Bill Cooke.

Dust and gas from Comet 9P/Tempel 1 seen by ESA OGS

Jul 05, 2005

Dust and gas are seen in these images of Comet 9P/Tempel 1, as observed with the 1-metre ESA Optical Ground Station (OGS) telescope, located at the Observatorio del Teide on Tenerife, Canary Islands. ...

Comet McNaught - A First Light Present for STEREO

Jan 19, 2007

This image of Comet McNaught comes from the Heliospheric Imager on one of the STEREO spacecraft, taken Jan. 11, 2007. To the right is the comet nucleus, so bright it saturates the detector creating a bright ...

New Comet Discovered from Mauna Kea

Dec 05, 2005

While searching for "killer asteroids" on Halloween night, University of Hawaii astronomer Fabrizio Bernardi found a new comet, the first discovered from Mauna Kea Observatories.

The great cometary show

Jan 19, 2007

Comet McNaught, the Great Comet of 2007, is no more visible for observers in the Northern Hemisphere. It does put an impressive show in the South, however, and observers in Chile, in particular at the Paranal ...

Recommended for you

Transition discs in Ophiuchus and Taurus

52 minutes ago

A star is typically born with a disk of gas and dust encircling it, from which planets develop as dust grains in the disk collide, stick together and grow. These disks, warmed by the star to a range of temperatures ...

Astronomers see pebbles poised to make planets

Jul 06, 2015

A team of astronomers led from St Andrews and Manchester universities today (6 July) announced the discovery of a ring of rocks circling a very young star. This is the first time these 'pebbles', thought ...

Small cosmic 'fish' points to big haul for SKA Pathfinder

Jul 06, 2015

A wisp of cosmic radio waves, emitted before our solar system was born, shows that a new radio telescope will be able to detect galaxies other telescopes can't. The work, led by Dr James Allison of the Commonwealth ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.