1000th sungrazing comet discovered by SOHO

Aug 10, 2006
1000th sungrazing comet discovered by SOHO
Comet SOHO-1185, the 1000th comet of the Kreutz family of sungrazing comets discovered in SOHO images.

Polish amateur comet hunter Arkadiusz Kubczak recently discovered his third comet in SOHO LASCO coronagraph images, but this one was special: the 1000th SOHO comet discovery in the Kreutz group of sungrazing comets.

While there is no formal definition of a 'sungrazing comet,' the term typically refers to the Kreutz-group comets, which have a perihelion distance of less than 0.01 of an Astronomical Unit (the mean distance between the Earth and the Sun), or some 1460000 km.

The 1185th comet discovered in data from the SOHO LASCO or SWAN instruments (the other 185 are not members of the Kreutz group), the faint object is officially designated C/2006 P7 (SOHO) by the Minor Planet Center of the International Astronomical Union.

Before the launch of SOHO in 1995 December, only some thirty members of the Kreutz group were known. All 1000 Kreutz comets are believed to be fragments of a single comet observed in c. 371 BCE by Aristotle and Ephorus, and the fragments themselves continue to fragment, making more sungrazing comets.

Source: ESA

Explore further: Image: Multicoloured view of supernova remnant

add to favorites email to friend print save as pdf

Related Stories

Comet Lemmon, Now in STEREO

Apr 25, 2013

An icy interloper was in the sights of a NASA spacecraft this past weekend. Comet 2012 F6 Lemmon passed through the field of view of NASA's HI2A camera as seen from its solar observing STEREO Ahead spacecraft. ...

Using many instruments to track a comet

Dec 13, 2011

(PhysOrg.com) -- In 16 years of data observations, the Solar Heliophysics Observatory (SOHO) -- a joint European Space Agency and NASA mission –- made an unexpected claim for fame: the sighting of new comets at an alarming ...

SOHO spots 2,000th comet

Dec 29, 2010

As people on Earth celebrate the holidays and prepare to ring in the New Year, an ESA/NASA spacecraft has quietly reached its own milestone: on December 26, the Solar and Heliospheric Observatory (SOHO) discovered ...

SOHO spots 2,000th comet

Dec 29, 2010

As people on Earth celebrate the holidays and prepare to ring in the New Year, an ESA/NASA spacecraft has quietly reached its own milestone: on December 26, the Solar and Heliospheric Observatory (SOHO) discovered ...

Recommended for you

Image: Multicoloured view of supernova remnant

7 hours ago

Most celestial events unfold over thousands of years or more, making it impossible to follow their evolution on human timescales. Supernovas are notable exceptions, the powerful stellar explosions that make ...

Ultra-luminous X-ray sources in starburst galaxies

7 hours ago

Ultra-luminous X-ray sources (ULXs) are point sources in the sky that are so bright in X-rays that each emits more radiation than a million suns emit at all wavelengths. ULXs are rare. Most galaxies (including ...

When a bright light fades

7 hours ago

Astronomer Charles Telesco is primarily interested in the creation of planets and stars. So, when the University of Florida's giant telescope was pointed at a star undergoing a magnificent and explosive death, ...

Image: Horsehead nebula viewed in infrared

8 hours ago

Sometimes a horse of a different color hardly seems to be a horse at all, as, for example, in this newly released image from NASA's Spitzer Space Telescope. The famous Horsehead nebula makes a ghostly appearance ...

The Milky Way's new neighbour

8 hours ago

The Milky Way, the galaxy we live in, is part of a cluster of more than 50 galaxies that make up the 'Local Group', a collection that includes the famous Andromeda galaxy and many other far smaller objects. ...

Image: Hubble sweeps a messy star factory

8 hours ago

This sprinkle of cosmic glitter is a blue compact dwarf galaxy known as Markarian 209. Galaxies of this type are blue-hued, compact in size, gas-rich, and low in heavy elements. They are often used by astronomers ...

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.