2001 Mars Observation Reports -- #23--


CMO Mars Observations
in the Second Half of April 2002 and the First Half of May 2002
from 16 April 2002 (359°Ls) to 15 May 2002 (013°Ls)
based on the article published in CMO #260 (25 May 2002)

Masatsugu MINAMI, Director of the OAA Mars Section

NOW the season of the 2001 Mars has been brought to a close. We deal with the following period here, but the results remained no more fruitful:

16 April 2002 (359°Ls) to 15 May 2002 (013°Ls).

On 16 April, the apparent diameter was only 4.2" while it went further down to 3.9" on 15 May. The planet is now near the Sun, and looks very low in contrast even at sunset. The Martian season passed the northern spring equinox. The central latitude
φvaried from 10S to 1S. MURAKAMI watched on 28 April and on 2 May all of the five planets in the evening sky, but he reports Mars was the smallest in diameter.


WE just received the following made during the period concerned:

    MINAMI, Masatsugu (Mn)  Fukui

         9 Drawings (18, 22, 26 April; 13 May 2002) 

480, 400×20cm ED Goto refractor*

     MORITA, Yukio (Mo)  Hatsuka-ichi, Hiroshima 

         2 Sets of CCD Images (11 May 2002)

f/50x25cm speculum equipped with an ST-5C

     MURAKAMI, Masami (Mk) Fujisawa, Kanagawa

     2 Drawings (28 April; 2 May 2002)  

  370×20cm peculum

                                                                           *Fukui City Observatory


THE Martian season attained 000Ls on 18 April 2002: The present writer (Mn) watched on the day at LCM=220W - 230W where a dark band was seen though a shadowy area in the NH was not identified. The spr is light, and the morning limb to the npr was misty or cloudy. The central latitude=10S. On 22 April(002Ls) Mn watched at LCM=170W - 190W: Similar results with the band darker at the morning side. 20C. On 26 April (004Ls) at LCM=140W - 150W, the light area of the spr was rather small, and adjacent to the nph a shadowy marking was seen. On 28 April (005Ls), MURAKAMI (Mk) observed at 10:00 GMT at LCM=130W: The dark band including M Sirenum and the light area both at np and sp regions. The angular diameter4.0". After the observation, he caught the planet Mercury. Mk also observed further on 2 May (007Ls) at LCM=091W to look around Solis L but it was not distinct though shadowy. The npr is largely light. The sky was clear, and he could saw all of five planets by naked eyes.

 On 11 May (011Ls) MORITA (Mo) shot at LCM=011W - 018W; however there is made no difference on R, G, and B; just IR images show a stable shadowy area near a limb. On 13 May (012Ls) at around LCM=340W, Mn made his last observations this season: The observations no more produced plausible assertions: the dark markings were very obscure and the npc suspected was also not well certain. The limb area near Hellas was light. 18C. We shall wait for its eastern rise.


WE suppose MURAKAMI (Mk) also closed his observations on 2 May: He started from 4 January 2001 whenδ=5.4" and made observations 277 times, out which he sent us a total of 234 observations. He was active as a Webmaster of the CMO-Internet that has proved very successful especially this season. MORITA (Mo) was also active and very helpful to us as a ccd contributor of the trio composed with AKUTSU (Ak) and KUMAMORI (Km). We waited this time also for the observations from ISHADOH (Id), but in vain. We suppose so his final drawing was made on 13 March 2002 when app diam=4.6": he obtained a total of 274 drawings. He contributed valuably from the westernmost district (in Japan) at the height season of the dust storm. MINAMI (Mn) started from 27 October 2000 when app diam=4.0" and ended thus on 13 May 2002 when app diam3.9". He made a total of 1088 sketches during the season.

 This Martian season proved incomparably wonderful: Somebody simple-minded says the season was boring because of the dust covering, but this was a golden opportunity of watching the beginning and the ending of the marvelous global dust storm (for us, if not to say for the incompetent professionals). We are thankful to all who joined us to support our project. We especially should like to express our sincere thanks to overseas durable observers and supporters such as Dr Don PARKER and others for their contributions and encouragements.


Back to CMO #260 Home Page / Back to Façade