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Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

105 Artemis - 18.10.2022 at 23.55 - 19.10.2022 at 00.00 Janakkala, Tervakoski Observation number 110919

Visibility I / V

Petri Kuossari, Riihimäen tähtit. yhdistys

I looked despairingly at the cloudy sky and nevertheless decided to put the telescope outside to cool down, I also adjusted the tripod to the vatupass to wait until midnight. Around 23:30 I went outside and found that the sky had opened up to starry, placed the telescope on the stand and checked the collimation, and performed the focus.

I adjust the object's coordinates and other settings on my telescope and when I'm ready at h-moment 23:55 I press the start icon, after about 1.5 minutes of waiting I saw the star TYC 4709-578-1 covering asteroid 105 Artemis on the screen. The joy of success overwhelms the mind. A couple of minutes after the sighting, the clouds take over the sky again, once again luck is right for the weather. It's still dark, and the data is sent to the Seti Institute, and it's ready before going to bed.

Artemis has a diameter of about 119 km and orbits the Sun in the main asteroid belt between Mars and Jupiter.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 105 Artemis
  • Seeing
    • Average
Technical information

Target: 105 Artemis

Observer's name: Petri Kuossari

Date: 2022 10 18

City: Janakkala, Tervakoski Finland

60.791885 N 24.630539 E

eVscope ID: 257ksz

Star TYC 4709-578-1

V (mag) 12.51

RA 03h 29m 35s

DEC -00° 15' 49"

Start/end of the observation: 23:55 to 00:00 Finland time

Dark frames 00:00 to 00:02

Exposure time 300ms

Gain 30DB

Duration 05m00s

Bordle 4

Comments: 2 pcs
Timo Kantola - 4.12.2022 at 12.44 Report this

Tämä on kyllä hieno havainto! Varsinkin tuo video on hyvin havainnollistava, ja ilmiömäistä tuuria kelien puolesta. Onnittelut!

Petri Kuossari - 4.12.2022 at 18.30 Report this

Kiitos Timo

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