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だいちの星座

Constellations of the Earth

Posts by Hiroshi_SUZUKI

もりや座│Moriya Constellation

2018年7月31日 Hiroshi_SUZUKI 作品｜Works
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“Moriya Constellation” Hiroshi SUZUKI + Masato OHKI, 2015, Geoglyph image

 

Imaging day March 7th, 2015
Imaging time 11:36
Target Moriya City, Ibaraki / JAPAN
Satellite ALOS-2
Scene ID ALOS2042432900-150307

Reflection on the ground
Number of original reflection 12
Number of other reflection 12
Number of people 283
Satellite azimuth 99°

Subtraction processing
Imaging day January 22nd, 2011
Imaging time 10:08
Target Moriya City, Ibaraki / JAPAN
Satellite ALOS (PALSAR)
Scene ID ALPSRP266062890

 

いばらきけんぽく座│Ibaraki Kenpoku Constellation

2018年7月31日 Hiroshi_SUZUKI 作品｜Works
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“Ibaraki Kenpoku Constellation” Hiroshi SUZUKI + Masato OHKI, 2016, Geoglyph image

 

Imaging day August 11th, 2016
Imaging time 11:43
Target Ibaraki / JAPAN
Satellite ALOS-2
Scene ID ALOS2119762876-160811

Subtraction processing
Imaging day September 24th, 2015
Imaging time 11:43
Target Ibaraki / JAPAN
Satellite ALOS-2
Scene ID ALOS2072152876-150924
Satellite azimuth 100°

Location: Takahagi City
Position 36°41’57. N / 140°41’39. E
Leader Tomonobu SUZUKI

［Reflection on the ground］
Number of original reflection 10
Number of other reflection 10 + α
Number of people 35

Location: Hitachiota City
Position 36°34’36. N / 140°33’2. E
Leader Kazushi MORI

［Reflection on the ground］
Number of original reflection 10
Number of other reflection 10 + α
Number of people 23

Location: Hitachiomiya City
Position 36°39’54. N / 140°18’20. E
Leader Masayuki TAGUCHI

［Reflection on the ground］
Number of original reflection 27 (1 big size)
Number of other reflection 7 + α
Number of people 51

Location: Daigo Town
Position 36°46’40. N / 140°19’38. E
Leader Atsushi MINAKAWA

［Reflection on the ground］
Number of original reflection 10
Number of other reflection 1 + α
Number of people 26

Location: Hitachi City
Position 36°34’24. N / 140°38’22. E
Leader Hitachi Civic Center Science Museum

［Reflection on the ground］
Number of original reflection 10
Number of other reflection –
Number of people 47

Location: Kitaibaraki City
Position 36°49’55. N / 140°42’35. E
Leader Mutsumi SATO

［Reflection on the ground］
Number of original reflection 11
Number of other reflection 6 + α
Number of people 23

たかはぎ座│Takahagi Constellation

2018年7月31日 Hiroshi_SUZUKI 作品｜Works
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“Takahagi Constellation” Hiroshi SUZUKI + Masato OHKI, 2017, Geoglyph image

 

Imaging day June 15th, 2017
Imaging time 11:42
Target Takahagi City, Ibaraki / JAPAN
Satellite ALOS-2
Scene ID ALOS2165302880-170615

Reflection on the ground
Number of team 4
Number of reflection 1195
Number of people 1179
Satellite azimuth 100°

Subtraction processing
Imaging day August 11th, 2016
Imaging time 11:43
Target Takahagi City, Ibaraki / JAPAN
Satellite ALOS-2
Scene ID ALOS2119762876-160811

モンゴルの夜空

2018年7月31日 Hiroshi_SUZUKI イントロダクション｜Introduction お知らせ｜News
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「だいち2号」の光跡（＊写真右上）／ ©Hiroshi Suzuki

2016年7月19日午前0時39分。

地球観測衛星「だいち2号」がモンゴルの草原の上を静かに飛んでいく。電波反射器の並んだ広場に集まった人々は、昼間の活動では見えない人工衛星の光を静かに目で追う。

本書で紹介する《だいちの星座》の作品は、一見すると〈夜空に浮かぶ星と星座〉に見えるが、JAXAが運用する「だいち2号」の観測画像を利用して制作した地上絵だ。人々が手作りの電波反射器を配置し、「だいち2号」が通過する方位に向ける。地上絵には観測されたデータと画像処理によって「1等星」や「星雲」が浮かび上がり、それらを結んだ新しい星座が地上に表れる。

0:39 a.m., July 19, 2016.

The Earth observation satellite Daichi 2 quietly flies over the Mongolian plains. Human beings, gathered in an open space lined with radio wave reflectors, silently follow with their eyes the dot of light that is the satellite, which is hidden from view during the day.

The Constellations of the Earth presented in these pages appear at first glance to be constellations of stars poised in the night sky. They are, in fact, geoglyphs – pictures drawn across the land – produced using satellite imagery captured by JAXA’s Daichi 2. People set up handmade corner reflectors, pointing them in the direction of the satellite. By applying image processing to the observation data, “first magnitude stars” and “nebulae” show up in the geoglyph, revealing constellations that take shape on the earth.