火星 ALPO-Japan Latest

Mars Image 2025/05/05(UT)

Rudolf A.Hillebrecht,Paul G. Abel
R.A.Hillebrecht,P.Abel

---

NPC has still a gap, on this side of Mars it must be the Rima Tenuis. Best visible in red images. In the first image clouds at Elysium (right limb) and Ausonia (@ 5 o'clock). Haze in Hellas bassin.
Hellas completely cloudy in the two following images, could be easily misinterpreted as southern polar cap - which is actually invisible. Broad haze at evening limb in last image.

[Rudolf A.Hillebrecht: Bad Gandersheim,Germany ]

We had reaosnable seeing here on 5th May and I was able to make further observations of Mars.  I continue to make filter drawings as it is helpful to confirm white cloud activity and also if frost is returning to the Hellas basin.
Once again the evening limb was bright with white cloud activity.  Hellas was very brilliant, and the Syrtis Major can be seen close to the evening limb.  SInus Sabeus can still be made out as a dark thin streak but Sinus Meridiani was just a vague hazy patch.  Deucalions Regio was lighter and Pandorae Freturm can be seen although it is largely featureless.  Acidalium can be made out on the morning limb and there seemed to be bright clouds on the morning limb where Chryse was located.  The small northern polar cap can still be seen with a polar band.
The views in W21 and W80A were similar- Hellas was very bright in W21 nad in W80A.  The bright clouds were also apparent in the blue filter.
Seeing started to fall off at 2059UT.

[Paul G. Abel:Leicester:United Kingdom]

ALPO-Japan Latest Mars Section	2025/05/06
	2025/05/04