Posted on Oct 8, 2022
APOD: 2022 October 8 - Two Comets in Southern Skies
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Good morning, Rallypoint, and welcome to the October 8th edition of Astronomy Picture of the Day (APOD): "Two Comets in Southern Skies." Today's contribution comes from seven-time APOD winner José Chambó (you can see more of his work and notes on gear on the site
cometographia.es).
On the left is comet C/2017 K2 PanSTARRS, initially spotted over five years ago in May 2017 by PanSTARRS in Hawai'i. As you may remember, this comet is on its first journey into our solar system from the Oort Cloud. On the right is comet 73/P Schwassmann–Wachmann 3, discovered by astronomers Arnold Schwassmann and Arno Arthur Wachmann while working at the Hamburg Observatory in Bergedorf, Germany. It is a parent body of meteor shower Tau Herculids (occuring mid-May to mid-June).
From the gear notes provided by the astrophotographer: telescope is an ASA H8 Hyperbolic, camera is a QHY600M, and total exposure time for this composite image was 6 minutes. My imperfect Spanish tells me he travelled to the southern skies of Namibia to produce today's APOD.
cometographia.es).
On the left is comet C/2017 K2 PanSTARRS, initially spotted over five years ago in May 2017 by PanSTARRS in Hawai'i. As you may remember, this comet is on its first journey into our solar system from the Oort Cloud. On the right is comet 73/P Schwassmann–Wachmann 3, discovered by astronomers Arnold Schwassmann and Arno Arthur Wachmann while working at the Hamburg Observatory in Bergedorf, Germany. It is a parent body of meteor shower Tau Herculids (occuring mid-May to mid-June).
From the gear notes provided by the astrophotographer: telescope is an ASA H8 Hyperbolic, camera is a QHY600M, and total exposure time for this composite image was 6 minutes. My imperfect Spanish tells me he travelled to the southern skies of Namibia to produce today's APOD.
APOD: 2022 October 8 - Two Comets in Southern Skies
Posted from apod.nasa.gov
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Edited 2 y ago
Posted 2 y ago
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KennettFlash 4/21/12, Johnny Kay Bill Haley Comets Rockabilly live music country Rock Roll Pop Roots Rock music 1960s 1950s JK Rockets Kennett Flash original...
Thank you my space-exploration advocate friend Maj William W. 'Bill' Price for posting the October 8, 2022 Astronomy Picture of the Day (APOD): Two Comets in Southern Skies
Image: Two Comets in Southern Skies; Image Credit & Copyright: Jose J. Chambo (Cometografia)
APOD Explanation: Heading for its closest approach to the Sun or perihelion on December 20, comet C/2017 K2 (PanSTARRS) remains a sight for telescopic observers as it sweeps through planet Earth's southern hemisphere skies. First time visitor from the remote Oort cloud this comet PanSTARRS sports a greenish coma and whitish dust tail about half a degree long at the upper left in a deep image from September 21. It also shares the starry field of view toward the constellation Scorpius with another comet, 73P/Schwassmann-Wachmann 3, seen about 1 degree below and right of PanSTARRS. Astronomers estimate that first time visitor comet C/2017 K2 (PanSTARRS) has been inbound from the Oort cloud for some 3 million years along a hyperbolic orbit. Schwassmann-Wachmann 3 is more familiar though. The periodic comet loops through its own elliptical orbit, from just beyond the orbit of Jupiter to the vicinity of Earth's orbit, once every 5.4 years. Just passing in the night, this comet PanSTARRS is about 20 light-minutes from Earth in the September 21 image. Seen to be disintegrating since 1995, Schwassmann-Wachmann 3 was about 7.8 light-minutes away.'
Johnny Kay Bill Haley Comets Rockabilly live music country Rock Roll Pop Roots Rock music
https://www.youtube.com/watch?v=BR38_CJ8xQQ
FYI SPC Deb Root-White SPC (Join to see) SGT Mark Anderson SGT Tiffanie G. SGT Mary G. SSgt Kelly D. LTC (Join to see) SPC Lyle Montgomery SPC Gary C. SFC Boots AttawaySgt John H.SSG Jeffrey Leake SSG Robert Pratt SSgt David M.PO1 Howard BarnesPO2 (Join to see) SSG Franklin Briant Sgt Diane E. CMDCM John F. "Doc" Bradshaw
Image: Two Comets in Southern Skies; Image Credit & Copyright: Jose J. Chambo (Cometografia)
APOD Explanation: Heading for its closest approach to the Sun or perihelion on December 20, comet C/2017 K2 (PanSTARRS) remains a sight for telescopic observers as it sweeps through planet Earth's southern hemisphere skies. First time visitor from the remote Oort cloud this comet PanSTARRS sports a greenish coma and whitish dust tail about half a degree long at the upper left in a deep image from September 21. It also shares the starry field of view toward the constellation Scorpius with another comet, 73P/Schwassmann-Wachmann 3, seen about 1 degree below and right of PanSTARRS. Astronomers estimate that first time visitor comet C/2017 K2 (PanSTARRS) has been inbound from the Oort cloud for some 3 million years along a hyperbolic orbit. Schwassmann-Wachmann 3 is more familiar though. The periodic comet loops through its own elliptical orbit, from just beyond the orbit of Jupiter to the vicinity of Earth's orbit, once every 5.4 years. Just passing in the night, this comet PanSTARRS is about 20 light-minutes from Earth in the September 21 image. Seen to be disintegrating since 1995, Schwassmann-Wachmann 3 was about 7.8 light-minutes away.'
Johnny Kay Bill Haley Comets Rockabilly live music country Rock Roll Pop Roots Rock music
https://www.youtube.com/watch?v=BR38_CJ8xQQ
FYI SPC Deb Root-White SPC (Join to see) SGT Mark Anderson SGT Tiffanie G. SGT Mary G. SSgt Kelly D. LTC (Join to see) SPC Lyle Montgomery SPC Gary C. SFC Boots AttawaySgt John H.SSG Jeffrey Leake SSG Robert Pratt SSgt David M.PO1 Howard BarnesPO2 (Join to see) SSG Franklin Briant Sgt Diane E. CMDCM John F. "Doc" Bradshaw
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LTC Stephen F.
Paul Norton - Southern Sky (Official Music Video)
Taken from Paul Norton’s Under A Southern Sky album, released in 1990. Listen to the full album here - https://WMA.lnk.to/PN-UASS#PaulNorton #SouthernSky
Paul Norton - Southern Sky (Official Music Video)
https://www.youtube.com/watch?v=fNd6wta3zG4
FYI Maj William W. 'Bill' Price MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. SPC Jon O. SPC(P) (Join to see) SGT Steve McFarland SGT Wayne Dunn Lt Col Charlie Brown LTC Thomas TennantCW5 Jack Cardwell CSM Charles Hayden 1SG Steven Imerman SMSgt David A Asbury CW5 Jack Cardwell CSM Charles Hayden 1SG Steven Imerman SMSgt David A Asbury Sgt (Join to see) Lt Col John (Jack) Christensen
https://www.youtube.com/watch?v=fNd6wta3zG4
FYI Maj William W. 'Bill' Price MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. SPC Jon O. SPC(P) (Join to see) SGT Steve McFarland SGT Wayne Dunn Lt Col Charlie Brown LTC Thomas TennantCW5 Jack Cardwell CSM Charles Hayden 1SG Steven Imerman SMSgt David A Asbury CW5 Jack Cardwell CSM Charles Hayden 1SG Steven Imerman SMSgt David A Asbury Sgt (Join to see) Lt Col John (Jack) Christensen
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Maj William W. 'Bill' Price
CPT Jack Durish Good question. It is because their orbits are different. These two links may help explain what I'm talking about.
https://in-the-sky.org/solarsystem.php?obj=CK17K020
https://in-the-sky.org/solarsystem.php?obj=0073P
https://in-the-sky.org/solarsystem.php?obj=CK17K020
https://in-the-sky.org/solarsystem.php?obj=0073P
3D Diagram of the orbit of C/2017 K2 (PANSTARRS)
An online orrery, showing the positions of the planets and C/2017 K2 (PANSTARRS) around their orbits.
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