David's Astronomy Pages Images - Session 1464 (2026-10-15)

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Images (S1465)

Objects	Session Notes
220P/McNaught - Comet   Variable Stars (photometric monitoring) - RX And, Z And, SY Cnc, YZ Cnc, T CrB, AM Her, RZ LMi, BL Lac, CY Lyr, NV Ori, ER UMa   - SS Cyg attempt failed (due to cloud)   Nearby Stars (astrometric monitoring) - None	- All-Night Session (10.9 hr), slighly interrupted by cloud - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 3°C (min) - CCD Temperature:  -15°/-20°C - Notes from 2026-10-15 >> - -

Observing Result

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220P/McNaught  - Comet

220P/McNaught - 2026-10-16 (passing through Taurus) Sun Distance 1.94 AU Earth Distance 1.02 AU (152.3 million km)		220P/McNaught - 2026-10-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -25.5 arcsec/hr, Dec -18.2 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-10-16 02:04 UT (#1464169-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-10-16 02:08 UT (#1464169-77) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of Comet 220P McNaught on Comets 2026 Page  >>

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