Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

M87 Black Hole Jet - 22.3.2020 at 02.00 - 22.3.2020 at 03.10 Helsinki, Maunula Observation number 89231

Visibility III / V

Jorma Ryske, Etelä-Suomen kosmol. seura

I wondered if the narrow-band UV filter M87 would somehow make the famous relativistic shower of the black hole more clearly visible. However, it doesn’t stand out strikingly here compared to RGB exposures, but maybe a little “hot blue-white” on the jet is visible. In the attached RGB image, the UV exposures are placed in the B band. This item requires a longer focal length, 1200mm is too little. RGB exposures 10min and UV 387nm 40min.

Added dotted image of a narrowband 387nm UV filter exposure alone.

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • M87 Black Hole Jet
    • Keskitaso
  • Brightness in magnitudes
    • 9.6
  • Field of view
  • 22 arc minutes
  • Weather
    • -5
  • Darkness
    • Bad
  • Seeing
    • Mediocre
  • Limiting magnitude
    • 4
  • Galaxies
    • Active galaxy info

      The active galaxy OJ 287 in Cancer. This active galaxy includes the biggest known black hole. Image Arto Oksanen.

    • Elliptic galaxy info

      Elliptic galaxy is an oval or roundish shaped distant stellar system, which have no spiral arms. These galaxies look as fuzzy spots with telescopes.


      The elliptic galaxy Centaurus A aka NGC 5128 in the middle of image is splitted by a dust lane. Image Toni Veikkolainen.

Technical information

TS 305 / 1200mm Newton, TS KomakorrF4, QSI690 bin2, Astrodon RGB, Semrock CN 387nm / 15nm, CEM60. North up, east left.

Comments: 4 pcs
Juha Ojanperä - 23.3.2020 at 13.08 Report this

Mielenkiintoinen ja sitäkin haastavampi kohde, ja kyllä se suihku tuolla juuri näkyy ytimen lähellä!

Marko Pekkola - 23.3.2020 at 13.55 Report this

Wau mikä kohde.

Jorma Ryske - 23.3.2020 at 19.32 Report this

Lisätty pelkän UV/387nm filtterin raakakuva. Harjaantunut visuaalihavaitsija saattaisi muuten nähdä suihkun suoraan Ursan Astrofoxilla hyvissä olosuhteissa, suihkun kirkkaus on tuossa lähes samaa luokkaa kuin M87 ydin.

Tapio Lahtinen - 23.3.2020 at 20.38 Report this

Koitin hakea deepsky-archivesta visuaalihavaintoja mutta en saanut hakua toimimaan.
Sen sijaa foorumin M87-ketjussa Iiro Sairanen raportoi nähneensä suihkun 18-tuuman newton-putkella.

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