HOWPol body
HOWPol body



HOWPol and peripheralsbody
HOWPol body and peripherals on the Nasmyth table of Kanata telescope



Assemble of images
Images of HOWPol R&D



CCDs
CCDs (2k x 4k, full-depleted, manufactured by HPK/NAOJ) and M-front2 preamp boards



Wedged double Wollaston prism for narrow field
Wedged double Wollaston prism for narrow field (NFWol)
Wedged double Wollaston prism for wide field
Wedged double Wollaston prism for wide field (WFWol)

Sample of first light images

First-light image of star-forming region M16 obtained on 2008 Jul 29 (RGB-composite, V-band 1x60sec exp., R-band 1x60sec exp.)



Sample of first light images

First-light image of globular cluster M3 obtained on 2008 Jul 29 (R-band 2sec exp.)



Image profile of sample star in above M3 image

Image profile of a sample star in above M3 image. Average seeing size (Full-Width at Half-Maximum) is 4.0 +- 0.15 pixels, corresponding to 1.2 +- 0.04 arcseconds.



M74 with wide-field one-shot polarimetry mode
I-band (10-min exposure) image of M74 taken by HOWPol/Kanata
with its wide-field (7' by 7') one-shot polarimetry mode



M74
RGB-composite image of face-on galaxy M74 taken by HOWPol/Kanata with V (8x10-min exp.), R (5x5-min), and I (5x5-min) filters on 2008 Nov 4. (9.3 x 9.3 arcmin FOV)



Horse head nebula
Horse-head nebula obtained with V (4x180-sec exp.), R (3x80-sec), and I (3x180-sec) filters on 2008 Nov 21. (10.6 x 11.0 arcmin FOV)



M1 image
Crab nebula M1 (supernova remnant) taken with V (4x5-min exp.), R (3x5-min), and I (3x5-min) filters on 2008 Nov 30. (14.4 x 10.2 arcmin FOV)



M42 image
Orion nebula (massive star forming region) M42 taken with V (4x20-sec exp.), R (4x15-sec), and z' (4x15-sec) filters on 2008 Nov 30. (16.9 x 14.6 arcmin FOV)



M57 RGB-composite image
Ring nebula M57 taken with B (3x10-min exposure), V (3x5-min), and R (3x5-min) filters on 2008 Dec 2. (3.6 x 3.4 arcmin FOV)



NGC 891 RGB-composite image
Edge-on galaxy NGC 891 taken with V (5x4-min exposure), R (5x4-min), and I (5x4-min) filters on 2008 Dec 2 and 3. (9.7 x 11.5 arcmin FOV)




HOWPol Development Team since 2005. All rights reserved.