Difference between revisions of "Astronomy/DSOs"
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Lumosityfan (talk | contribs) (→2020 DSOs: Added description of MACS J1149.5+223, JKCS 041, and GRB 150101B) |
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[http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GRB+150101B SIMBAD] | [http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GRB+150101B SIMBAD] | ||
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− | | colspan="7" | | + | | colspan="7" | GRB 150101B is a likely merger of 2 neutron stars 1.7 billion light years from Earth. It is fairly similar to GW170817, the first source shown to emit gravitational waves and light. |
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!rowspan="2" | [https://en.wikipedia.org/wiki/JKCS_041 JKCS 041] | !rowspan="2" | [https://en.wikipedia.org/wiki/JKCS_041 JKCS 041] | ||
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| [https://chandra.harvard.edu/photo/2009/jkcs041/ Chandra] | | [https://chandra.harvard.edu/photo/2009/jkcs041/ Chandra] | ||
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− | | colspan="7" | | + | | colspan="7" | JKCS 041 is a group of galaxies about 9.9 billion light years. it is the farthest galaxy group from Earth discovered. It has a redshift of 1.9. |
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!rowspan="2" | [https://en.wikipedia.org/wiki/MACS_J0717.5%2B3745 MACS J0717.5+3745] | !rowspan="2" | [https://en.wikipedia.org/wiki/MACS_J0717.5%2B3745 MACS J0717.5+3745] | ||
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[https://frontierfields.org/2014/02/25/meet-the-frontier-fields-macs-j1149-52223/ Frontier Fields] | [https://frontierfields.org/2014/02/25/meet-the-frontier-fields-macs-j1149-52223/ Frontier Fields] | ||
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− | | colspan="7" | | + | | colspan="7" | MACS J1149.5+2223 is a galaxy cluster which bends light from more distant objects due to its huge mass through gravitational lensing. |
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!rowspan="2" | [https://en.wikipedia.org/wiki/Bullet_Cluster Bullet Cluster (1E 0657-56)] | !rowspan="2" | [https://en.wikipedia.org/wiki/Bullet_Cluster Bullet Cluster (1E 0657-56)] |
Revision as of 18:14, 12 June 2020
The Astronomy DSO list specifies which Deep Space Objects may be covered in the Astronomy event that year, and is roughly analogous to the Deep Sky Objects typically found in the rules for the Division B event Reach for the Stars. It is typically listed in section 3.c of the rules.
General Tips
The DSO list can seem daunting at first. A good strategy for DSOs is to take your own notes on them from various sources, and include images as well:
- Categorize the DSOs by its type or its stage in Stellar Evolution (e.g. Brown Dwarfs, Red Giants, White Dwarfs, Cepheid Variables, Supernova remnants, Globular Clusters), and take notes on each category about its stage in stellar evolution and significance in the study of Astronomy: For example, a Type Ia Supernova can either be the result of collision of two white dwarfs or accretion of matter from a stellar companion (often reaching the Red Giant stage), and its mostly uniform brightness can help Astronomers determine distance to distant galaxies using the distance modulus.
- For each Deep Space Object, take notes on what makes them unique and significant. The Chandra X-ray Observatory posts videos at the start of the competition season that briefly explain each object's significance, and the Chandra photo album and NASA's APOD are also good resources. For Variable stars, AAVSO is a helpful resource.
- Find photos (and light curves for variable stars) of the Deep Space Objects, as many as possible and across all wavelengths. Almost all tests include tasks to identify DSOs based on images or find all images of a certain DSO/category, and more difficult tests sometimes include more obscure images of the DSOs. Include the wavelength of light a certain image was taken in.
- Take notes on Miscellaneous information about each deep-star object, including, but not limited to: constellation, alternate names, magnitude, stellar classification, right ascension/declination, and color index.
- Take practice tests. They help reveal weaknesses in your notes on Deep Space Objects.
- If you are given certain information about a DSO such as the masses and the separation of the binary system, calculate the period. Use information you already have to calculate other values before the test, saving you valuable time.
2020 DSOs
Name | Images | Constellation | Magnitude | Distance | Coordinates | External Links | ||||
---|---|---|---|---|---|---|---|---|---|---|
Apparent | Absolute | Right Ascension | Declination | |||||||
SN UDS10Wil | Cetus | 10.5 Gly, 3.2 Gpc | 02h 17m 46.3s | -05° 15′ 24.00″ | ||||||
SN UDS10Wil is the furthest supernova so far of the type used to measure cosmic distances. It was discovered by the Hubble Space Telescope and was discovered as part of a three-year Hubble program that started in 2010 to survey faraway Type 1a supernovae known as the CANDELS survey. | ||||||||||
NGC 2623 | [[]] | Cancer | 13.36 | 250 Mly, 76.7 Mpc | 08h 38m 24.1s | +25° 45′ 16.70″ | ||||
NGC 2623 is the result of a major collision and subsequent merger between two galaxies. The merger is going through late stages and is thought to eventually resemble what the Milky Way will look like when it collides with our neighboring galaxy, Andromeda in 4 billion years. | ||||||||||
GRB 150101B | [[]] | Virgo | 1.7 Gly, 0.52 Gpc | 12h 32m 04.96s | −10° 56′ 00.7″ | Chandra | ||||
GRB 150101B is a likely merger of 2 neutron stars 1.7 billion light years from Earth. It is fairly similar to GW170817, the first source shown to emit gravitational waves and light. | ||||||||||
JKCS 041 | [[]] | Cetus | ~9.9 Gly, ~ 3.04 Gpc | 02h 26m 44s | −04° 41′ 37″ | Chandra | ||||
JKCS 041 is a group of galaxies about 9.9 billion light years. it is the farthest galaxy group from Earth discovered. It has a redshift of 1.9. | ||||||||||
MACS J0717.5+3745 | 175px | 175px | Auriga | 5.4 Gly, 1.7 Gpc | 07h 17m 36.50s | +37° 45′ 23″ | Chandra | |||
MACS J1149.5+2223 | [[]] | Leo | Approximately 5 billion light-years | 11h 49m 36.3s | +22° 23′ 58.1″ | Chandra | ||||
MACS J1149.5+2223 is a galaxy cluster which bends light from more distant objects due to its huge mass through gravitational lensing. | ||||||||||
Bullet Cluster (1E 0657-56) | Carina | 3.7 billions light-years, 1.141 Gpc | 06h 58m 37.9s | −55° 57′ 0″ | ||||||
H1821+643 | [[]] | Draco | 14.24 | 3.4 Gly, 1.0 Gpc | 18h 21m 57.24s | +64° 20′ 36.23″ | Chandra | |||
GOODS-S 29323 | Fornax | 13.2 Gly, 4.05 Gpc | 03h 32m 28s | –27° 48′ 30″ | Chandra | |||||
The Chandra Deep Field Survey South is a photograph taken for over 8 million seconds exposure by the Chandra Deep Field Telescope. It contains at least 5,000 black holes, which makes it a topic of interest for astronomy. | ||||||||||
H2356-309 | Sculptor | Approximately 2 billion light-years | 23h 59m 07.9s | -30° 37′ 41.00″ | Chandra | |||||
152156.48+520238.5 | [[]] | Boötes | Approximately 10.75 billion light-years | 15h 21m 56.5s | +52° 02′ 38.50″ | Chandra | ||||
153714.26+271611.6 | [[]] | Corona Borealis | Approximately 11.03 billion light-years | 15h 37m 14.3s | +27° 16′ 11.6″ | Chandra | ||||
222256.11-094636.2 | [[]] | Aquarius | Approximately 11.48 billion light-years | 22h 22m 56.10s | -09° 46′ 36.20″ | Chandra | ||||
PSS 0133+0400 | [[]] | [[]] | Pisces | Approximately 10.1 billion light-years | 01h 31m 04.8s | +03° 45′ 37.8″ | Chandra | |||
PSS 0955+5940 | [[]] | [[]] | Ursa Major | Approximately 10.2 billion light-years | 09h 51m 37.4s | +59° 54′ 43.6″ | Chandra | |||
GW151226 | [[]] | [[]] | Approximately 1.4 billion light-years | n/a | n/a | LIGO | ||||
GW151226 was a Gravitational-Wave signal observed by the twin detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) on December 26, 2015 at 03:38:53 UTC making it the second definitive observation of a merging binary black hole system detected by the LIGO Scientific Collaboration and Virgo Collaboration. | ||||||||||
M87 | Virgo | 7.19 | 53.5 ± 1.6 Mly, 16.4 ± 0.5 Mpc | 12h 30m 49.42338s | +12° 23′ 28.0439″ | Chandra | ||||
3C 273 | Virgo | 12.9 | 2.443 Gly, 749 Mpc | 12h 29m 06.7s | +02° 03′ 09″ | AAVSO | ||||
3C 273 is the most optically bright quasar, and also one of the closest, in our night sky. Along with 3C 48, it was the first object to be identified as what we now know to be quasars. |
Previous Years' DSO Lists
2019 DSOs
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2018 DSOs
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2017 DSOs
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2015 DSOs
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2014 DSOs
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2013 DSOs
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2012 DSOs
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2011 DSOs
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2010 DSOs
-**is part of a special viewing campaign this year and will be included up to at least 2011. |
2009 DSOs
-*is part of a special viewing campaign this year and will be included up to at least 2011. |
See Also
- Astronomy
- Astronomy/Stellar Evolution
- Astronomy/Variable Stars
- Astronomy/Star and Planet Formation
- Astronomy/Type Ia Supernovae
- Astronomy/Type II Supernovae
- Astronomy/Exoplanets
Links
- Basic note sheet for the 2011 DSOs
- SIMBAD Astronomy Database for DSOs