| |
Summary: NanoSail-D is the first-ever solar sail to orbit our planet. Launched
in Nov. 2010, the sail is now in a decaying orbit that should bring
it back to Earth, meteor-style, as early as April 2011. Meanwhile,
it is drawing attention to itself in the night sky by flickering
and flaring as sunlight glints off its reflective fabric. NASA: Solar
Sail Stunner, Watch
Out for Solar Sail Flares |
|
 |
| |
| |
Photographer,
Location |
Images |
Photographer's
Comments |


|
Peter
Rosén,
Stockholm, Sweden
Feb 4, 2011 |
33
MB Quicktime movie,
zoomed still image |
I
photographed NanoSail-D from Stockholm, Sweden, on Feb.
4th. The sail was very low on the horizon, but I was able
to catch it using my Canon EOS 5D digital camera. I estimate
its magnitude between +6 and +7.
There
are many other satellites in the field of view and some
airplanes coming in for landing at the local airport. NanoSail-D
behaves very differently from other satellites as its visibility
seems to pulsate in short flashes sometimes several per
second. This image zooms in on the phenomenon. I wonder if it due to small
changes in the sail's direction and thus reflectivity?
Photo
details: Canon EOS 5D Mk II, 85/1.2 lens wide open
@ 1.2, 55 one-sec exposures at ISO 3200. |
|
Vesa
Vauhkonen,
Rautalampi, Finland
Jan. 30, 2011 |
#1, #2 |
I
took a set of digital images of Nano-Sail-D on 30rd of January
2011 in Rautalampi in Middle-Finland. I took 30 sec expositions
of a flare 17:27:52 to 17:33:31 UTC. The sail moved from
WNW to NNE, having max. altitude of 28 degrees. The max.
magnitude was +3.5. I combined the photos without and with
aligning the stars. Nikon D70S, 18 mm/f/3,5, ISO 1600. 30
sec expositions. 'Nanopurje' means Nanosail. |

|
Esko
Lyytinen,
Finland, Helsinki
Jan. 30, 2011 |
#1, #2 |
NanoSail-D
on a Fireball-Cam
I got,
as a surprise, the NanoSail-D2 on my fireball camera. This
is 2 minute a peak-hold image made with computer from real
time video data with the camera: http://www.supercircuits.com/Security-Cameras/Bullet-Security-Cameras/PC88WR-2
It is taken at 17:32-17:34 UT. Vega (about the same magnitude
as N.S. maximum) is seen to the lower left in the image
and Ursa Major at rigth. Polaris up center. The second image
is a comparison "screen copy" from Heavens Above. Times
in it are for timezone UT+2. |

|
Enzo
De Bernardini,
Buenos Aires, Argentina
Jan. 27, 2011 |
#1 |
Moon-NanoSail
Conjunction!
I caught
NanoSail-D crossing the vicinity of the waning moon in a
one-second exposure. The satellite has low magnitude (i.e.,
it is dim), and so the image was enhanced considerably.
Slight cloudiness present. The published orbital elements
are accurate, the conjunction took place at exactly predicted
time. Used a Canon EOS 300D camera at ISO-800, and 80 mm
F/5 refractor telescope. Processed with PixInsight. |
 |
more
images: from
Mika Järvinen of Finland; from
Arto Oksanen of Jyväskylä, Finland
|
|
|
 |