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Are space camera sensors usually round, or square?

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3

$begingroup$

A series of round lenses produces a round image on some sort of sensor or sensor array.

When it comes to cameras and telescopes out in space, are the sensors also round?

It seems like most of the images I've seen from space telescopes and cameras are rectangular, but I'm not sure if that's cropping in post-processing or something more raw.

General answers are fine as well as specific well-known examples (like HST, to pick one at random.)

space-telescope telescope

share|improve this question

asked 8 hours ago

RogerRoger

1,36011 silver badge1717 bronze badges

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Many earth observation satellites are linear and capture the ground by moving over it.
  $endgroup$
  – lijat
  3 hours ago
  

  
  
  
  

add a comment
 | 

3

$begingroup$

A series of round lenses produces a round image on some sort of sensor or sensor array.

When it comes to cameras and telescopes out in space, are the sensors also round?

It seems like most of the images I've seen from space telescopes and cameras are rectangular, but I'm not sure if that's cropping in post-processing or something more raw.

General answers are fine as well as specific well-known examples (like HST, to pick one at random.)

space-telescope telescope

share|improve this question

asked 8 hours ago

RogerRoger

1,36011 silver badge1717 bronze badges

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Many earth observation satellites are linear and capture the ground by moving over it.
  $endgroup$
  – lijat
  3 hours ago
  

  
  
  
  

add a comment
 | 

$begingroup$

A series of round lenses produces a round image on some sort of sensor or sensor array.

When it comes to cameras and telescopes out in space, are the sensors also round?

It seems like most of the images I've seen from space telescopes and cameras are rectangular, but I'm not sure if that's cropping in post-processing or something more raw.

General answers are fine as well as specific well-known examples (like HST, to pick one at random.)

space-telescope telescope

share|improve this question

asked 8 hours ago

RogerRoger

1,36011 silver badge1717 bronze badges

$endgroup$

share|improve this question

asked 8 hours ago

RogerRoger

1,36011 silver badge1717 bronze badges

share|improve this question

asked 8 hours ago

RogerRoger

1,36011 silver badge1717 bronze badges

asked 8 hours ago

RogerRoger

1,36011 silver badge1717 bronze badges

asked 8 hours ago

RogerRoger

1,36011 silver badge1717 bronze badges

2 Answers
2

active

oldest

votes

5

$begingroup$

Kepler

The Kepler space telescope uses a bank of 21 rectangular CCD modules - each with two 2200x1024 pixel CCDs). Each module covers 5 square degrees on the sky.

https://keplerscience.arc.nasa.gov/the-kepler-space-telescope.html

Giving a field of vision of:

Hubble

For Hubble, the wide field camera CCD sensor is again rectangular/square

https://www.teledyne-e2v.com/news/e2v-ccd-imaging-sensors-to-enable-nasas-hubble-space-telescope-to-explore-the-nature-and-history-of-our-universe-with-greater-capability-than-ever-before/

This WFC3 (Wide Field Camera 3) forms just a small portion of Hubble's field of view from its full instrumentation coverage.

This illustration shows the “footprints” of all the instruments in Hubble’s field of view. These include the fine guidance sensors (FGSs), the Near Infrared Camera and Multi-Object Spectrometer (NICMOS), the Space Telescope Imaging Spectrograph (STIS), the Cosmic Origins Spectrograph (COS), the Wide Field Camera 3 (WFC3), and the Advanced Camera for Surveys (ACS), which includes the Solar Blind Channel (SBC). WFC3 and ACS are the two instruments involved in the Frontier Fields program.

share|improve this answer

edited 7 hours ago

answered 8 hours ago

SnowSnow

1,04744 silver badges1414 bronze badges

$endgroup$

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  that's a really beautiful example! It's round(ish) in outline and a (piecewise) curved surface as well for field curvature.
  $endgroup$
  – uhoh
  8 hours ago
  
  

  
  
  
  

add a comment
 | 

1

$begingroup$

There were a lot of square format cameras.

• The Voyager cameras had 800*800 pixels.




• The LORRI cameras of New Horizons had 1024*1024 pixels.




• The Galileo cameras had 800*800 pixels.




• The Cassini WAC and NAC cameras had 1024*1024 pixels.




• The narrow and wide angel OSIRIS cameras of Rosetta had 2048*2048 pixels.




• The FC camera of Dawn had 1024*1024 pixels.

share|improve this answer

edited 37 mins ago

answered 1 hour ago

UweUwe

15.6k33 gold badges4242 silver badges7272 bronze badges

$endgroup$

add a comment
 | 

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5

$begingroup$

Kepler

The Kepler space telescope uses a bank of 21 rectangular CCD modules - each with two 2200x1024 pixel CCDs). Each module covers 5 square degrees on the sky.

https://keplerscience.arc.nasa.gov/the-kepler-space-telescope.html

Giving a field of vision of:

Hubble

For Hubble, the wide field camera CCD sensor is again rectangular/square

https://www.teledyne-e2v.com/news/e2v-ccd-imaging-sensors-to-enable-nasas-hubble-space-telescope-to-explore-the-nature-and-history-of-our-universe-with-greater-capability-than-ever-before/

This WFC3 (Wide Field Camera 3) forms just a small portion of Hubble's field of view from its full instrumentation coverage.

This illustration shows the “footprints” of all the instruments in Hubble’s field of view. These include the fine guidance sensors (FGSs), the Near Infrared Camera and Multi-Object Spectrometer (NICMOS), the Space Telescope Imaging Spectrograph (STIS), the Cosmic Origins Spectrograph (COS), the Wide Field Camera 3 (WFC3), and the Advanced Camera for Surveys (ACS), which includes the Solar Blind Channel (SBC). WFC3 and ACS are the two instruments involved in the Frontier Fields program.

share|improve this answer

edited 7 hours ago

answered 8 hours ago

SnowSnow

1,04744 silver badges1414 bronze badges

$endgroup$

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  that's a really beautiful example! It's round(ish) in outline and a (piecewise) curved surface as well for field curvature.
  $endgroup$
  – uhoh
  8 hours ago
  
  

  
  
  
  

add a comment
 | 

5

$begingroup$

Kepler

The Kepler space telescope uses a bank of 21 rectangular CCD modules - each with two 2200x1024 pixel CCDs). Each module covers 5 square degrees on the sky.

https://keplerscience.arc.nasa.gov/the-kepler-space-telescope.html

Giving a field of vision of:

Hubble

For Hubble, the wide field camera CCD sensor is again rectangular/square

https://www.teledyne-e2v.com/news/e2v-ccd-imaging-sensors-to-enable-nasas-hubble-space-telescope-to-explore-the-nature-and-history-of-our-universe-with-greater-capability-than-ever-before/

This WFC3 (Wide Field Camera 3) forms just a small portion of Hubble's field of view from its full instrumentation coverage.

This illustration shows the “footprints” of all the instruments in Hubble’s field of view. These include the fine guidance sensors (FGSs), the Near Infrared Camera and Multi-Object Spectrometer (NICMOS), the Space Telescope Imaging Spectrograph (STIS), the Cosmic Origins Spectrograph (COS), the Wide Field Camera 3 (WFC3), and the Advanced Camera for Surveys (ACS), which includes the Solar Blind Channel (SBC). WFC3 and ACS are the two instruments involved in the Frontier Fields program.

share|improve this answer

edited 7 hours ago

answered 8 hours ago

SnowSnow

1,04744 silver badges1414 bronze badges

$endgroup$

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  that's a really beautiful example! It's round(ish) in outline and a (piecewise) curved surface as well for field curvature.
  $endgroup$
  – uhoh
  8 hours ago
  
  

  
  
  
  

add a comment
 | 

$begingroup$

Kepler

The Kepler space telescope uses a bank of 21 rectangular CCD modules - each with two 2200x1024 pixel CCDs). Each module covers 5 square degrees on the sky.

https://keplerscience.arc.nasa.gov/the-kepler-space-telescope.html

Giving a field of vision of:

Hubble

For Hubble, the wide field camera CCD sensor is again rectangular/square

https://www.teledyne-e2v.com/news/e2v-ccd-imaging-sensors-to-enable-nasas-hubble-space-telescope-to-explore-the-nature-and-history-of-our-universe-with-greater-capability-than-ever-before/

This WFC3 (Wide Field Camera 3) forms just a small portion of Hubble's field of view from its full instrumentation coverage.

This illustration shows the “footprints” of all the instruments in Hubble’s field of view. These include the fine guidance sensors (FGSs), the Near Infrared Camera and Multi-Object Spectrometer (NICMOS), the Space Telescope Imaging Spectrograph (STIS), the Cosmic Origins Spectrograph (COS), the Wide Field Camera 3 (WFC3), and the Advanced Camera for Surveys (ACS), which includes the Solar Blind Channel (SBC). WFC3 and ACS are the two instruments involved in the Frontier Fields program.

share|improve this answer

edited 7 hours ago

answered 8 hours ago

SnowSnow

1,04744 silver badges1414 bronze badges

$endgroup$

share|improve this answer

edited 7 hours ago

answered 8 hours ago

SnowSnow

1,04744 silver badges1414 bronze badges

answered 8 hours ago

SnowSnow

1,04744 silver badges1414 bronze badges

answered 8 hours ago

SnowSnow

1,04744 silver badges1414 bronze badges

1

$begingroup$

There were a lot of square format cameras.

• The Voyager cameras had 800*800 pixels.




• The LORRI cameras of New Horizons had 1024*1024 pixels.




• The Galileo cameras had 800*800 pixels.




• The Cassini WAC and NAC cameras had 1024*1024 pixels.




• The narrow and wide angel OSIRIS cameras of Rosetta had 2048*2048 pixels.




• The FC camera of Dawn had 1024*1024 pixels.

share|improve this answer

edited 37 mins ago

answered 1 hour ago

UweUwe

15.6k33 gold badges4242 silver badges7272 bronze badges

$endgroup$

add a comment
 | 

1

$begingroup$

There were a lot of square format cameras.

• The Voyager cameras had 800*800 pixels.




• The LORRI cameras of New Horizons had 1024*1024 pixels.




• The Galileo cameras had 800*800 pixels.




• The Cassini WAC and NAC cameras had 1024*1024 pixels.




• The narrow and wide angel OSIRIS cameras of Rosetta had 2048*2048 pixels.




• The FC camera of Dawn had 1024*1024 pixels.

share|improve this answer

edited 37 mins ago

answered 1 hour ago

UweUwe

15.6k33 gold badges4242 silver badges7272 bronze badges

$endgroup$

add a comment
 | 

$begingroup$

There were a lot of square format cameras.

• The Voyager cameras had 800*800 pixels.




• The LORRI cameras of New Horizons had 1024*1024 pixels.




• The Galileo cameras had 800*800 pixels.




• The Cassini WAC and NAC cameras had 1024*1024 pixels.




• The narrow and wide angel OSIRIS cameras of Rosetta had 2048*2048 pixels.




• The FC camera of Dawn had 1024*1024 pixels.

share|improve this answer

edited 37 mins ago

answered 1 hour ago

UweUwe

15.6k33 gold badges4242 silver badges7272 bronze badges

$endgroup$

share|improve this answer

edited 37 mins ago

answered 1 hour ago

UweUwe

15.6k33 gold badges4242 silver badges7272 bronze badges

answered 1 hour ago

UweUwe

15.6k33 gold badges4242 silver badges7272 bronze badges

answered 1 hour ago

UweUwe

15.6k33 gold badges4242 silver badges7272 bronze badges