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Ursa Astronomical Association
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Ursa Astronomical Association

Mars - 28.9.2020 at 04.20 Espoo Observation number 93926

Visibility III / V

Janne Sievinen, Ursa (Helsinki)

Mars directly from the home balcony across the sea, photographed through a thin flat mist / cloud of gauze. Seeing was not fussy, but with a slightly larger stack of images, however, the main features of the surface of Mars came to the fore.

Imaging was performed under prevailing conditions with a popular 742 nm IR emission filter. Stacking images (1089 pcs) and wavelet filtering with RegiStax6 and some histogram adjustment with Adobe Lightroom.

It’s been 15 years since the last shot, and the original tracking and focusing devices on the TAL-200K telescope would require, to put it mildly, a bit of maintenance - preferably perhaps even modernization.

Additional information
  • Observation target
    • Mars
    • Keskitaso
  • Seeing
    • Average
Technical information

TAL-200K Klevtsov-Cassegrain, TeleVue PowerMate 5x Barlow, ZWO ASI 178MM, 742 nm IR pass filter. Frame Capture 50 ms, 4x bin, stacking by RegiStax6, histograms by Lightroom.

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