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Bootes Constellation

Bootes (Pronounciation:Boo-oh-teas, Abbrev:Boo, Latin:Bootis) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Bootes takes up 906.831 sq. degrees of the night sky which equates to 2.2% of the night sky. The constellation gets its name as it name means The Bear Driver . The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D. and 168 A.D.

Bootes is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Bootes is a northern hemispheric constellation which means it can't be seen easily or at all from the southern hemisphere.

The brightest star in Bootes is Arcturus. There are 12 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. The current largest star so far identified in the constellation of Bootes is Arcturus.

Bootes Star and Deep Space Object Count

The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Bootes is 2428. The number of stars that are of magnitude 6.0 or lower in the constellation is 86. The number of stars in the constellation that make up the outline is 8.

There are no deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.

Stars of Interest

The nearest star to Earth is HIP 67593 which is roughly about 17.37 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HD 128311 which is about 53.82 Light Years. The furthest star that can be located in the constellation is HIP 70093 which is located about 108721.1 Light Years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

The dimmest star that can be seen in Bootes with the naked eye is HIP71094. The dim star has an apparent magnitude of . The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

Constellation Legend

It is unclear as to who Bootes is supposed to be. One legend has him as the man who with his dogs in Canes Venatici, chase the bears around the skies keeping the Earth rotating. He was also alleged to have created the Plough which pleased the agriculture goddess who asked for him to be turned into a constellation. Another story has been being associated with Icarius who allowed Bacchus, the Roman God to visit the farm and get too drunk. In revenge of being allowed to get too drunk, he was turned into a constellation. A third story has Bootes as Arcas who was the son of Zeus and Callisto. Arcas was bought up by his mortal grandfather who later killed his grandson.. Zeus bought Arcas back to life. Callisto was turned into a bear by a very angry Hera. When Arcas was grown up he came across Callisto as a bear but didn't recognise her so he chased her as they seem to do so in the stars.

Bootes has one of the most active of meteor showers at the beginning of the solar year in January and is known as the Quadrantids. Unlike other Meteor Showers, the name isn't obvious as to what constellation it belongs to. The reason for the difference in name comes from the fact that the centre of activity used to be a now ignored constellation called Quadrans Muralis to the north of Bootes.

The Great Void

One of the most interesting parts of the constellation is that it contains a Supervoid or the Great Void to give it another name. The area is nearly 250 million light years in diameter and approximately about 0.27% of the diameter of the visible universe. ref:Wiki. As its name implies, it is void of all things in the universe, there's hardly anything there compared to comparable sized areas in the universe. There are not much in the way of galaxies in this region, an area of that size should contain about 10,000 Galaxy but so far there have only been about 60 discovered. ref:IO9. It was first discovered by Robert Kirshner and his team in the 1980 and been observed every since.

Other Meteor Showers

There are 18 Meteor Showers that occur during the year within this constellation based on information gathered from Adam Mickiewicz University (Poland). The ones listed as the ones I've been able to find a date range for. For others if you have the time, you can visit the AMU site, obtains the SL value then use IMO tables to calculate the date. A lot of the Meteor Showers are weak and you need to do a lot of stargazing to spot them.

NameActivityPeak ActivityClosest Star
Lambda BootidsJan 17-18Jan 17Xuange
June BootidsJune 27-July 5Jun. 28/29Nekkar

Bootes Facts

Is a Zodiac Sign No
Largest StarArcturus
Brightest StarArcturus
Area906.831 sq. deg.
Percentage of Night Sky2.2%
Size Position13th
Hemisphere Northern
Site Exoplanet Count12
Meteor Shower Count18
Nearest StarHIP 67593
Nearest Star with Exoplanet(s)HD 128311
Dimmest StarHIP71094
Furthest StarHIP 70093
Bright Star Count86
Hipparcos Star Count2428
Main Star Count8
Messier Deep Space Object Count0
*Non-Messier Deep Space Object Count0
Bordering / Neighbouring / Surrounding ConstellationsDraco
Ursa Major
Canes Venatici
Coma Berenices
Corona Borealis

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

Bootes Constellation Map

Bootes Constellation Star Map

The map was generated using Night Vision, an awesome free application by Brian Simpson.

List of Stars with Exoplanets in Bootes

StarDistance (Lt. Yrs.)Exoplanet CountDeclinationRight Ascension
HD 122562175.361+20d 52` 53.314h 02m 21.09
HD 12831153.822+09d 44` 49.714h 36m 00.44
HD 131496358.821+18d 14` 07.814h 53m 23.00
HD 132406221.431+53d 22` 58.314h 56m 54.67
HD 134113234.481+08d 52` 47.715h 07m 46.81
HD 136418320.401+41d 44` 01.115h 19m 06.20
HD 141399117.964+46d 59` 10.515h 46m 53.91
Qatar-6122d 09` 09.0014h 48m 50.00

List of Named Stars in Bootes without Extrasolar Planets

As there's so many stars in the cosmos, not all the stars are listed here. The site has lots of stars not listed so if your star isn't listed and you know the Henry Draper or Hipparcos ID, type https://www.universeguide.com/star/ then followed by the HIPNNNNNN or HDNNNN where NNNNN is the number part of the name. The stars that I do list have either a traditional name, a bayer or other classification name.

StarDistance (Lt. Yrs.)DeclinationRight Ascension
1 Bootis328.13+19d 57` 20.413h 40m 40.50
1 G. Boo270.23+08d 53` 41.714h 01m 20.41
10 Bootis472.02+21d 41` 46.813h 58m 38.93
101 Virginis762.06+15d 15` 48.114h 17m 28.44
11 Bootis296.78+27d 23` 11.614h 01m 10.53
12 Bootis122.07+25d 05` 30.614h 10m 23.95
13 Bootis549.10+49d 27` 28.914h 08m 17.36
14 Bootis110.64+12d 57` 34.514h 14m 05.33
15 Bootis264.96+10d 06` 03.614h 14m 50.86
18 Bootis85.12+13d 00` 15.814h 19m 16.22
2 Bootis335.90+22d 29` 45.013h 41m 02.36
2 G. Boo463.30+07d 32` 46.414h 03m 36.79
20 Bootis187.02+16d 18` 24.514h 19m 45.32
22 Bootis290.70+19d 13` 36.614h 26m 27.41
24 Bootis326.16+49d 50` 41.914h 28m 38.09
26 Bootis176.21+22d 15` 35.914h 32m 32.62
3 Bootis292.52+25d 42` 08.613h 46m 43.33
31 Bootis537.34+08d 09` 42.314h 41m 38.76
32 Bootis403.17+11d 39` 39.414h 41m 43.62
33 Bootis185.95+44d 24` 16.414h 38m 50.28
34 Bootis704.46+26d 31` 40.414h 43m 25.37
39 Bootis223.71+48d 43` 14.014h 49m 41.36
40 Bootis167.95+39d 15` 54.814h 59m 36.97
44 Bootis40.80+47d 39` 14.515h 03m 47.68
45 Bootis63.78+24d 52` 10.515h 07m 17.95
46 Bootis517.72+26d 18` 04.315h 08m 23.78
47 Bootis274.32+48d 09` 03.215h 05m 25.89
5 G. Boo358.82+08d 05` 05.414h 24m 18.34
50 Bootis261.98+32d 56` 01.215h 21m 48.61
6 Bootis401.18+21d 15` 50.613h 49m 42.82
7 Bootis689.56+17d 55` 58.313h 53m 12.95
9 Bootis581.40+27d 29` 31.913h 56m 34.16
Alkalurops113.13+37d 22` 37.115h 24m 29.54
Alkalurops B117.62+37d 20` 49.515h 24m 30.97
Arcturus36.72+19d 11` 14.214h 15m 40.35
Asellus Primus47.39+51d 51` 06.214h 25m 12.02
Asellus Secundus94.81+51d 22` 01.314h 16m 10.07
Asellus Tertius151.49+51d 47` 16.414h 13m 27.75
BP Bootis298.68+52d 21` 39.015h 42m 50.82
BX Bootis553.76+47d 16` 38.715h 00m 38.73
Ceginus169.70+40d 21` 11.815h 37m 49.55
Chi Bootis252.45+29d 09` 51.215h 14m 29.21
DE Bootis37.54+19d 09` 08.214h 53m 24.04
Izar202.59+27d 04` 27.014h 44m 59.25
Kappa Bootis163.41+51d 47` 24.014h 13m 28.95
Merga159.81+46d 06` 59.014h 49m 18.68
Muphrid37.17+18d 23` 54.913h 54m 41.12
Nadlat245.98+26d 56` 51.615h 04m 26.86
Nekkar225.25+40d 23` 26.315h 01m 56.79
Nu1 Bootis838.47+40d 49` 59.015h 30m 55.75
Nu2 Bootis388.29+40d 53` 57.715h 31m 46.99
Omega Bootis371.48+25d 00` 29.715h 02m 06.51
Omicron Bootis243.04+16d 57` 51.914h 45m 14.50
Pi Bootis305.68+16d 25` 05.914h 40m 43.56
Princeps121.79+33d 18` 54.415h 15m 30.10
R Bootis+26 d 44` 11.614h 37m 11.59
Rho Bootis160.12+30d 22` 16.114h 31m 49.86
Seginus86.79+38d 18` 28.414h 32m 04.76
Sigma Bootis51.64+29d 44` 41.314h 34m 40.69
Tau Bootis50.94+17d 27` 24.413h 47m 16.04
Upsilon Bootis263.46+15d 47` 52.113h 49m 28.70
Xi Bootis21.89+19d 06` 02.314h 51m 23.28
Xuange99.02+46d 05` 16.514h 16m 23.18
Zeta Bootis175.73+13d 43` 42.014h 41m 08.92

Bootes Constellation's Star Breakdown

Type Breakdown

KLight Orange Star 3,700 - 5,200k749
FYellow-White 6,000 - 7,500k682
GYellow 5,200 - 6,000k634
AWhite 7,500 - 10,000k169
MRed Dwarf Star <3,700k109
BBlue-White 10,500 - 30,000k13

Size Breakdown

IIINormal Giant184
VMain Sequence128
IIBright Giant4
IbLess Luminous Supergiant1

Breakdown of Dwarf Stars by Type

sdsd Type SubDwarf Star1

Breakdown of Carbon Stars by Type

SS-Type Carbon Star1

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