Grand Return of Mars in 2001
d...Apparent diameter, L...Central longitude of Mars
| Common data | (Taken with digital still camera through telescopes & eyepieces) |
| Digital Camera: | OLYMPUS C-2020Z |
| Mode: | SHQ (1600×1200, high-quality JPEG format) |
| Date | Telescope | Eyepiece | Focal length | CCD sensitivity | Exposure Time, # of flames |
|---|
| Dec 30 | TAKAHASHI 12.5cm refractor | LV5mm | 9540mm | ISO100 | 1/3sec., 6 flames |
| Mar 20 | TAKAHASHI 12.5cm refractor | LV5mm | 9540mm | ISO400 | 1/10sec., 9 flames |
| Apr 1 | TAKAHASHI 12.5cm refractor | LV5mm | 9540mm | ISO400 | 1/13sec., 5 flames |
| Apr 29 | Meade 25cm Schmidt-Cassegrain | LV12mm | 7958mm | ISO100 | 1/10sec., 8 flames |
| May 13 | Meade 25cm Schmidt-Cassegrain | LV5mm | 19100mm | ISO400 | 1/10sec., 8 flames |
| May 20 | TAKAHASHI 13cm Newtonian | LV5mm | 7870mm | ISO400 | 1/5sec., 6 flames |
| Jun 2 | Meade 25cm Schmidt-Cassegrain | LV12mm | 7958mm | ISO400 | 1/30sec., 5 flames |
| Jun 11 | TAKAHASHI 13cm Newtonian | LV5mm | 7870mm | ISO400 | 1/4sec., 5 flames |
| Jun 18 | TAKAHASHI 13cm Newtonian | LV5mm | 7870mm | ISO400 | 1/3sec., 8 flames |
| Jun 26 | TAKAHASHI 13cm Newtonian | LV5mm | 7870mm | ISO400 | 1/3sec., 5 flames |
| Jul 3 | VIXEN 20cm VISAC | LV5mm | 13752mm | ISO400 | 1/8sec., 9 flames |
| Jul 4 | VIXEN 20cm VISAC | LV5mm | 13752mm | ISO400 | 1/6sec., 9 flames |
| Jul 10 | VIXEN 20cm VISAC | LV5mm | 13752mm | ISO400 | 1/8sec., 7 flames |
| Jul 23 | VIXEN 20cm VISAC | LV5mm | 13752mm | ISO400 | 1/4sec., 8 flames |
This page shows you the set of Mars images taken in 2001.
The Mars comes the closest to the Earth on June 22, its apparent diameter will exceed 20 arc seconds.
The Mars closes to the Earth every 26 months, and next approach in August 2003, the Mars will have the closest approach to the Earth in 21st century.
This year's return of Mars can be said a preliminary skirmish of the approach in 2003,
the observing season will continue until autumn of this year.
Added a postscript on Jul 9, 2001
It's reported that the large-scaled sand storm occurred on Mars in July 2001 and the storm is covering major features on Mars.
Images of July 3 and 4 show you very flat appearences of Mars different from those before June.
