Lunar Surface Astronomy

Far UV / spectrographic images taken during the Apollo 16 mission, April 1972

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Mission Frame: 27
Lunar Surface Exposure: 8

Target: Cygnus Nebula

Date of Exposure: April 21, 1972
Time (GMT): 18:11:53
Duration of Exposure: 10 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 98
Declination: 37.5
Right Ascension: 320.7
Elevation: 28

About 100 star images and the Cygnus Nebula are visible in this exposure.

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Mission Frame: 30
Lunar Surface Exposure: 11

Target: Earth

Date of Exposure: April 21, 1972
Time (GMT): 18:27:46
Duration of Exposure: 30 seconds
Filter Type: Lithium Fluoride

Azimuth setting: 56
Declination: 14.7
Right Ascension: 318.2
Elevation: 76

This is a double-exposed frame with a 15-sec. Earth image and a 15-sec. spectral exposure.

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Mission Frame: 39
Lunar Surface Exposure: 20

Target: Earth

Date of Exposure: April 21, 1972
Time (GMT): 18:32:32
Duration of Exposure: 1.25 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 56
Declination: -14.7
Right Ascension: 318.2
Elevation: 76

Double exposure with 75 sec. spectral exposure and 15 sec. image exposure. Image exposure overlapped about 15% by frame 38, about 20% by frame 40. The Lyman-Alpha band of spectral exposure overlaps the Earth (geocorona) image.

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Mission Frame: 44
Lunar Surface Exposure: 25

Target: Earth

Date of Exposure: April 21, 1972
Time (GMT): 18:48:30
Duration of Exposure: 3 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 56
Declination: -14.6
Right Ascension: 318.4
Elevation: 76

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Mission Frame: 45
Lunar Surface Exposure: 26

Target: Earth

Date of Exposure: April 21, 1972
Time (GMT): 18:51:38
Duration of Exposure: 10 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 56
Declination: -14.6
Right Ascension: 318.4
Elevation: 76

About 24 star images, Earth aurora, 'belts', and dayglow. Possibly 2 nebulae.

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Mission Frame: 46
Lunar Surface Exposure: 27

Target: Earth

Date of Exposure: April 21, 1972
Time (GMT): 19:01:38
Duration of Exposure: 30 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 56
Declination: -14.6
Right Ascension: 318.5
Elevation: 76

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Mission Frame: 48
Lunar Surface Exposure: 29

Target: Earth

Date of Exposure: April 21, 1972
Time (GMT): 19:32:28
Duration of Exposure: 3 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 56
Declination: -14.5
Right Ascension: 318.8
Elevation: 76

This exposure shows a full Lyman-Alpha band and a short 1304 band.

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Mission Frame: 49
Lunar Surface Exposure: 30

Target: Earth

Date of Exposure: April 21, 1972
Time (GMT): 19:35:08
Duration of Exposure: 10 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 56
Declination: -14.5
Right Ascension: 318.8
Elevation: 76

Frame shows a full Lyman-Alpha band, 1304 band, and 1355 band.

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Mission Frame: 74
Lunar Surface Exposure: 55

Target: Grus

Date of Exposure: April 22, 1972
Time (GMT): 0:20:38
Duration of Exposure: 30 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 258
Declination: -41.4
Right Ascension: 355
Elevation: 64

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Mission Frame: 104
Lunar Surface Exposure: 85

Target: Grus

Date of Exposure: April 22, 1972
Time (GMT): 11:26:08
Duration of Exposure: 200 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 258
Declination: -40.2
Right Ascension: 0
Elevation: 64

Strong Lyman-Alpha band and 6 spectral lines, mottled at left side of mirror-image print.

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Mission Frame: 111
Lunar Surface Exposure: 92

Target: Earth

Date of Exposure: April 22, 1972
Time (GMT): 16:49:19
Duration of Exposure: 1.25 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 58
Declination: -10
Right Ascension: 329
Elevation: 76

First exposure after change of target from Grus to Earth. Earth target is off-center. (Az. and elev. settings are nominal setting - this frame is off-nominal.) Double exposure - 75 sec. spectral exposure and a 15 sec. image exposure.

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Mission Frame: 124
Lunar Surface Exposure: 105

Target: Large Magellanic Cloud

Date of Exposure: April 22, 1972
Time (GMT): 17:19:33
Duration of Exposure: 1 minute
Filter Type: Lithium Fluoride

Azimuth setting: 276
Declination: -74
Right Ascension: 89
Elevation: 14

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Mission Frame:129
Lunar Surface Exposure:110

Target: Large Magellanic Cloud

Date of Exposure: April 22, 1972
Time (GMT): 17:37:03
Duration of Exposure: 10 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 276
Declination: -73.8
Right Ascension: 89
Elevation: 14

Frame shows Large Magellanic Cloud and about 45 star images.

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Mission Frame:130
Lunar Surface Exposure:111

Target: Large Magellanic Cloud

Date of Exposure: April 22, 1972
Time (GMT): 17:47:03
Duration of Exposure: 30 minutes
Filter Type: Calcium Fluoride Azimuth setting: 276
Declination: -73.8
Right Ascension: 89
Elevation: 14

Frame shows Large Magellanic Cloud and about 70 star images.

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Mission Frame: 140
Lunar Surface Exposure: 121

Target: Large Magellanic Cloud

Date of Exposure: April 22, 1972
Time (GMT): 19:44:33
Duration of Exposure: 200 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 276
Declination: -73.8
Right Ascension: 89
Elevation: 14

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Mission Frame: 144
Lunar Surface Exposure: 125

Target: Norma

Date of Exposure: April 22, 1972
Time (GMT): 23:22:24
Duration of Exposure: 1 minute
Filter Type: Lithium Fluoride

Azimuth setting: 326
Declination: -58.9
Right Ascension: 261
Elevation: 16

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Mission Frame:149
Lunar Surface Exposure:130

Target: Norma

Date of Exposure: April 22, 1972
Time (GMT): 23:39:54
Duration of Exposure: 4 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 326
Declination: -58.9
Right Ascension: 261
Elevation: 16

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Mission Frame: 150
Lunar Surface Exposure: 131

Target: Aquarius

Date of Exposure: April 22, 1972
Time (GMT): 23:44:02
Duration of Exposure: 2 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 100
Declination: -4.6
Right Ascension: 344
Elevation: 77

Double exposure with a 30 sec. image exposure through the Li F filter and a 120 sec. spectral exposure through the Li F filter. Frame shows a faint Lyman-Alpha band, about 20 star images, part of N6300.

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Mission Frame: 154
Lunar Surface Exposure: 135

Target: Aquarius

Date of Exposure: April 23, 1972
Time (GMT): 0:00:32
Duration of Exposure: 30 seconds
Filter Type: Lithium Fluoride / Calcium Fluoride

Azimuth setting: 100
Declination: -4.6
Right Ascension: 344
Elevation: 77

Double exposure with a 5 sec. image exposure through Li F filter and a 25 sec. image exposure through the Ca F filter.

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Mission Frame: 191
Lunar Surface Exposure: 172

Target: Fornax

Date of Exposure: April 23, 1972
Time (GMT): 15:38:43
Duration of Exposure: 1 minute
Filter Type: Lithium Fluoride

Azimuth setting: 240
Declination: -27.3
Right Ascension: 56
Elevation: 33

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Mission Frame: 192
Lunar Surface Exposure: 173

Target: Fornax

Date of Exposure: April 23, 1972
Time (GMT): 15:39:43
Duration of Exposure: 3 minutes
Filter Type: Lithium Fluoride

Azimuth setting: 240
Declination: -27.3
Right Ascension: 56
Elevation: 33

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Mission Frame: 202
Lunar Surface Exposure: 183

Target: Milky Way Center

Date of Exposure: April 23, 1972
Time (GMT): 16:13:44
Duration of Exposure: 3 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 7
Declination: -30.5
Right Ascension: 278
Elevation: 15

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Mission Frame: 203
Lunar Surface Exposure: 184

Target: Milky Way Center

Date of Exposure: April 23, 1972
Time (GMT): 16:16:44
Duration of Exposure: 10 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 7
Declination: -30.5
Right Ascension: 278
Elevation: 15

About 150 star images visible; possible nebula at the bottom of the field of view

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Mission Frame: 204
Lunar Surface Exposure: 185

Target: Milky Way Center

Date of Exposure: April 23, 1972
Time (GMT): 16:26:44
Duration of Exposure: 30 minutes
Filter Type: Calcium Fluoride

Azimuth setting: 7
Declination: -30.5
Right Ascension: 278
Elevation: 15

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Images converted from dataset 72-031C-10B supplied by NASA's National Space Science Data Center.
Further information about this conversion on the next page.