96/97 report 024

1996/97 Mars Observation Reports -- # 024--


- Additional Reports published in CMO #204 -

25 June 1998

- - - by Masatsugu MINAMI, Director of the OAA Mars Section ---

WE FURTHER RECEIVED, a lot of beautiful drawings from Carlos HERNANDEZ, ALPO Mars Recorder, to whom we are very thankful. He also included this time his observations on 18, 19, 21, 23, 25 and 27 Jan 1997 which we had already reported in CMO #184 p1989.
       HERNANDEZ, Carlos E (CHr)  Miami, USA
             29 Drawings
               (6, 29 Jan 1997; 7, 13, 20, 24, 28 Feb; 4, 7, 10, 17 March; 22 May; 
                3, 6, 16, 19, 25, 27, 30 June; 3+, 4+, 8, 9, 22, 25, 30 July; 1++, 13+, 19, 26 Aug)
               285, 305, 385, 475, 490× 20cm f/7.5 speculum,
               270, 320× 20cm Schmidt Cass+  and   405x  41 cm Schmidt Cass++

  CHr uses filters Wr23A (for red), Wr38A (for blue) and Wr64 (green-blue).

  The sketch on 6 Jan (061°Ls) at ω=036°W was made in colour; the morning side being very white, while Tempe is orange. The following are sets of drawings in red and those in blue up until the end of March. The ω here recorded depends on the red one. The blue drawing is behind about 30 minutes and so.
  Now on 29 Jan (071°Ls) at ω=132°W, Solis L appeared dark while Thaumasia looked dusty to CHr as stated in his LtE cited in #184 p1995. Apparent diameter δ=10.4".
  On 5 Feb (074°Ls) at ω=035°W, M Acidalium was partially misted in the morning.
  On 7 Feb at ω=045°W, Solis L was already caught.
  On 13 Feb (078°Ls) at ω=340°W, the evening terminator was bright but Syrtis Mj was still seen. M Acidalium was totally inside the disk.
  On 20 Feb (081°Ls) at ω=270°W, Elysium was bright near the evening terminator. N Alcyonius evident. The contour of the npc was not clear.
  On 24 Feb (083°Ls) at ω=237°W, the EBC looked to be seen, though Syrtis Mj was considerablly apparent.
  On 28 Feb (084°Ls) at ω=194°W, Propontis I very evident and Elysium bright.
  On 4 Mar (086°Ls) at ω=156°W, Olympus Mons roundish bright even in red and a faint interesting dark marking preceded it near the terminator. See the drawing cited in another column.
  On 7 Mar (087°Ls) at ω=120°W, Olympus Mons at the CM. M Acidalium near the terminator from which a mist extended west-southward.
  On 10 Mar (087°Ls) at ω=108°W, Tharsis bright in the evening, and independently Olympus Mons roundish (one hour later Ascraeus Mons was detected in blue).
  On 17 Mar (092°Ls) at ω=033°W, M Acidalium near the CM while Hyperboreus L was not well separated though dark.

  On 22 May (122°Ls) at ω=126°W, the npc already thin in SN (De φ=25°N).
  On 3 June at ω=030°W, Chryse was light on the morning side.
  On 6 June (129°Ls) at ω=341°W, Syrtis Mj still big and Ismenius L was seen near CM to the north. The npc thin.
  On 16 June (134°Ls) at ω=256°W, N Alcyonius quite evident. The Elysium area very bright near the evening limb.
  On 19 June (135°Ls) at ω=216°W, Elysium large roundish in the afternoon.
  On 25 June (138°Ls) at ω=154°W, Propontis I near the CM.
  On 27 June (139°Ls) at ω=147°W, Olympus Mons was seen with a strange dark spot to the far north.
  On 30 June (140°Ls) at ω=110°W, M Acidalium totally seen near the evening limb. Solis L was well seen as well as M Sirenum on the morning side. A cloud belt at Tractus Albus.
  On 3 July (142°Ls) at ω=096°W, the main part of M Acidalium was misted.
  On 4 July (142°Ls) at ω=064°W, Chryse and Tempe were misty.
  On 8 July (144°Ls) at ω=038°W, M Acidalium was misty in the morning in blue. (As reported, on 27 June the HST found a dust cloud near Eos: CHr recorded that on 4 July Chryse-Xanthe was bright while on 8 July CHr stated that the area was dust free.) The observations that follow were all made in red.
  On 9 July (145°Ls) at ω=048°W, the npc was not depicted while the landing site of the Pathfinder was recorded to be clear.Apparent diameter(δ) was 7.1".
  On 22 July (152°Ls) at ω=261°W, the morning Syrtis Mj hidden under the thick mist.
  On 25 July (153°Ls) at ω=235°W where N Alcyonius visible, Elysium bright and large roundish, and Hesperia clear.
  On 30 July (156°Ls) at ω=171°W and on 1 Aug (157°Ls) at ω=151°W, Propontis I looks difficult to identify.
  On 13 Aug (163°Ls) at ω=040°W, the morning side of M Acidalium was misted.
  On 19 Aug (166°Ls) at ω=333°W, S Sabaeus was evident and Edom light.
  On 26 Aug (170°Ls) at ω=261°W where the apparent diameter δ=5.8", Syrtis Mj was seen near the morning terminator.

  Y HIGA (Hg) sent us a Video Tape surrounded with a background music where a series of the 1996/97 Mars images by him are contained from 14 Dec 1996 (051°Ls) through 20 July 1997 (151°Ls) (together with excellent images of Saturn and Jupiter in 1997).

Reports will be acknowledged if air-mailed to M MINAMI at Mikuni
(ask the mail-address through vzv03210@nifty.ne.jp ) .

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