Tau Herculids
Template:Short description Template:Infobox meteor shower
The Tau Herculids (TAH #0061) are a meteor shower that when discovered in 1930 appeared to originate from the star Tau Herculis. The parent comet of the Tau Herculids is periodic comet Schwassmann-Wachmann 3 with a 5.4 year orbital period. This meteor shower occurs from May 19 - June 19. The meteor shower was first observed by the Kwasan Observatory in Kyoto, Japan in May 1930. The Tau Herculids' average radiant was α=236°, δ=+41°.[1] Due to orbital perturbations of the meteor streams by Jupiter, 2022 activity will have a radiant of R.A. = 13:56 (209), Decl. = +28 (North-West of the star Arcturus in the constellation Boötes).[2] The meteors are relatively slow moving making atmospheric entry at around Script error: No such module "convert"..
On 31 May 1930 the comet passed about Script error: No such module "convert". from Earth,[3] on 9 June 1930 a meteor outburst with a zenithal hourly rate of around 100 was observed,[4] and then the comet passed perihelion (closest approach to the Sun) on 14 June 1930.
On 30–31 May 2022 (31 May 4:00-5:00 UT) there was a modest meteor shower generated by fragments from the 1995 break-up of the parent comet 73P.[5][6] This required that fragments had been migrating ahead of the comet for the last 27 years.[7] The parent comet has 69 known fragments[8] and does not come to perihelion (0.97 AU from the Sun) until 25 August 2022.[9] On 30 May 2022 comet 73P/Schwassmann–Wachmann was 1.5 AU from the Sun and Script error: No such module "convert". from Earth.[10] The next notable appearances of the Tau Herculids are expected in 2033[6] and 2049.[4]
References
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External links
- tau Herculids as seen by the Global Meteor Network cameras (30 May 2022 Denis Vida)
- Radio Meteor Observations (peaking around 4:00 UT 31 May)
- Tau Herculids Meteors over Kitt Peak Telescopes (Astronomy Picture of the Day accumulated over 2.5 hours very late on May 30)