Science & Space :  The Official GrahamHancock.com forums
For all that is Scientifically related to Cosmology and Space. (NB: Please take discussions about UFOs, possible Alien contact, Crop-Circles, Alien Abductions, Planet-X and Niburu to the ‘Paranormal and Supernatural’ Message Board). 
Welcome! Log InRegister
To quote from my own book on the subject of Ptolemy, Copernicus and Venus:

In the first century CE, Greek mathematician, astronomer, geographer,
and astrologer Ptolemy made detailed observations of the risings
and settings of Venus that are at odds with our current experience. In
support of Velikovsky’s view, a 2002 article by Hugh Thurston titled
“Unveiling Venus” seeks to resolve the seemingly untenable differences
between Ptolemy’s observations of the motions of Venus and those
known to be true today. He writes, “Several writers have suggested that
Ptolemy adjusted (or even fabricated) his observations [of Venus]. In
particular, Swerdlow wrote that Ptolemy ‘could not have observed some
of the reported elongations’ (he certainly could not have observed two
MMEs [maximum mean elongations] 37 days apart).”

Dennis W. Duke, a professor of physics at Florida State University,
writes in a 2002 article titled “The Ancient Values of the Planetary
Parameters of Venus and Mercury,” “It is certainly the case that for
Venus, and only for Venus, Ptolemy presents an analysis that . . . needs
to be resolved.”

As late as the early 1500s, significant differences are noted in the
astronomic observations of Venus, even when given by well-respected
astronomic luminaries of the day. For example, it is reported that
Copernicus, who famously established the heliocentric model of the
solar system, calculated the sidereal period of Venus to be nine months
(270 days) instead of seven and one-half months (225 days). Such errors,
which are often seen by modern astronomers to be inexplicable, might
make sense if Velikovsky’s view that Venus was out of its orbit were
true.

As we might also expect based on Velikovsky’s scenario in which the
orbit of Venus may have been in flux, there are also significant contradic-
tions to be found between Ptolemy’s observations of Venus in the first
century CE and those of Copernicus fourteen centuries later. Venus, as a
planet that reflects the light of the sun that is shone on it, moves through
apparent phases when viewed from Earth, similar to the familiar phases
of the moon. Such phases could appear significantly different to us for
different bodies, depending on the specific relationship of that body in
space to Earth and the sun. Both Ptolemy and Copernicus produced
drawings that purported to diagram or predict the various phases of
Venus. However, Lewis A. Riley, a professor in the Department of Physics
and Astronomy at Ursinus College, wrote in 2004:

"The phase of a planet or moon depends on its position relative both
to the Sun and the observer. Hence, any model of the solar system
can be used to make predictions regarding the phases of the planets
and moons. From our perspective on Earth, Mercury and Venus are
inner planets. That is, they are closer to the Sun than we are. The
Ptolemaic and Copernican models of the solar system make different
and incompatible predictions regarding the phases of the inner
planets viewed from Earth. Hence, observations of the phases of the
inner planets lead us to reject one or both of these models."


- Laird



Edited 1 time(s). Last edit at 31-Oct-15 04:00 by Laird Scranton.

Options: ReplyQuote


Subject Views Written By Posted
More comet evidence in support of Velikovsky 1816 Laird Scranton 28-Oct-15 23:02
Re: More comet evidence in support of Velikovsky 409 OCaptain 28-Oct-15 23:09
Re: More comet evidence in support of Velikovsky 288 carolb 28-Oct-15 23:12
Re: More comet evidence in support of Velikovsky 392 Laird Scranton 28-Oct-15 23:51
Re: More comet evidence in support of Velikovsky 286 Laird Scranton 28-Oct-15 23:42
Re: More comet evidence in support of Velikovsky 269 carolb 28-Oct-15 23:49
Re: More comet evidence in support of Velikovsky 258 Laird Scranton 29-Oct-15 00:42
Re: More comet evidence in support of Velikovsky 325 laughin 29-Oct-15 16:29
Re: More comet evidence in support of Velikovsky 315 Starbinder 29-Oct-15 17:42
Re: More comet evidence in support of Velikovsky 258 OCaptain 29-Oct-15 18:08
Re: More comet evidence in support of Velikovsky 224 laughin 29-Oct-15 18:49
Re: More comet evidence in support of Velikovsky 242 OCaptain 29-Oct-15 23:13
Re: More comet evidence in support of Velikovsky 245 laughin 31-Oct-15 15:26
Re: More comet evidence in support of Velikovsky 273 drrayeye 31-Oct-15 16:49
Re: More comet evidence in support of Velikovsky 207 OCaptain 31-Oct-15 16:58
Re: More comet evidence in support of Velikovsky 220 laughin 31-Oct-15 18:24
Re: More comet evidence in support of Velikovsky 214 OCaptain 31-Oct-15 19:07
Re: More comet evidence in support of Velikovsky 236 laughin 01-Nov-15 03:12
Re: More comet evidence in support of Velikovsky 247 Laird Scranton 01-Nov-15 05:37
Re: More comet evidence in support of Velikovsky 282 laughin 01-Nov-15 16:16
Re: More comet evidence in support of Velikovsky 187 Laird Scranton 01-Nov-15 16:31
Re: More comet evidence in support of Velikovsky 223 Aine 30-Oct-15 14:06
Re: More comet evidence in support of Velikovsky 210 laughin 30-Oct-15 14:53
Re: More comet evidence in support of Velikovsky 287 Aine 30-Oct-15 15:35
Re: More comet evidence in support of Velikovsky 225 carolb 30-Oct-15 15:36
Re: More comet evidence in support of Velikovsky 237 laughin 30-Oct-15 18:55
Re: More comet evidence in support of Velikovsky 252 Laird Scranton 30-Oct-15 16:44
Re: More comet evidence in support of Velikovsky 293 Aine 30-Oct-15 17:04
Re: More comet evidence in support of Velikovsky 246 carolb 30-Oct-15 17:21
Re: More comet evidence in support of Velikovsky 181 Laird Scranton 30-Oct-15 18:47
Re: More comet evidence in support of Velikovsky 232 laughin 30-Oct-15 18:44
Re: More comet evidence in support of Velikovsky 223 Laird Scranton 29-Oct-15 19:46
Re: More comet evidence in support of Velikovsky 242 laughin 29-Oct-15 20:48
Re: More comet evidence in support of Velikovsky 230 Laird Scranton 29-Oct-15 22:07
Re: More comet evidence in support of Velikovsky 207 carolb 29-Oct-15 22:24
Re: More comet evidence in support of Velikovsky 228 Starbinder 30-Oct-15 00:46
Re: More comet evidence in support of Velikovsky 227 Laird Scranton 30-Oct-15 01:01
Re: More comet evidence in support of Velikovsky 317 Aine 30-Oct-15 14:11
Re: More comet evidence in support of Velikovsky 222 Laird Scranton 30-Oct-15 15:42
Re: More comet evidence in support of Velikovsky 335 carolb 30-Oct-15 16:32
Re: More comet evidence in support of Velikovsky 200 Laird Scranton 30-Oct-15 16:51
Re: More comet evidence in support of Velikovsky 220 carolb 30-Oct-15 16:57
Re: More comet evidence in support of Velikovsky 181 Laird Scranton 30-Oct-15 17:02
Re: More comet evidence in support of Velikovsky 305 carolb 30-Oct-15 17:20
Re: More comet evidence in support of Velikovsky 192 OCaptain 30-Oct-15 20:07
Re: More comet evidence in support of Velikovsky 185 Laird Scranton 30-Oct-15 20:37
Re: More comet evidence in support of Velikovsky 274 OCaptain 31-Oct-15 00:51
Re: More comet evidence in support of Velikovsky 191 OCaptain 30-Oct-15 20:06
Re: More comet evidence in support of Velikovsky 236 Laird Scranton 30-Oct-15 20:34
Re: More comet evidence in support of Velikovsky 284 carolb 30-Oct-15 20:47
Re: More comet evidence in support of Velikovsky 182 Laird Scranton 30-Oct-15 21:09
Re: More comet evidence in support of Velikovsky 219 carolb 30-Oct-15 23:23
Re: More comet evidence in support of Velikovsky 207 Laird Scranton 31-Oct-15 00:49
Re: More comet evidence in support of Velikovsky 205 carolb 31-Oct-15 01:01
Re: More comet evidence in support of Velikovsky 176 Laird Scranton 31-Oct-15 01:10
Re: More comet evidence in support of Velikovsky 316 carolb 31-Oct-15 01:38
Re: More comet evidence in support of Velikovsky 176 Laird Scranton 31-Oct-15 02:56
Re: More comet evidence in support of Velikovsky 201 Laird Scranton 31-Oct-15 03:58
Re: More comet evidence in support of Velikovsky 281 carolb 31-Oct-15 12:01
Re: More comet evidence in support of Velikovsky 192 Laird Scranton 31-Oct-15 15:19
Re: More comet evidence in support of Velikovsky 183 Laird Scranton 31-Oct-15 15:47
Re: More comet evidence in support of Velikovsky 238 Laird Scranton 31-Oct-15 16:02
Re: More comet evidence in support of Velikovsky 210 Laird Scranton 31-Oct-15 18:26
Re: More comet evidence in support of Velikovsky 242 Laird Scranton 31-Oct-15 21:48
Re: More comet evidence in support of Velikovsky 189 Laird Scranton 01-Nov-15 00:27
Re: More comet evidence in support of Velikovsky 205 carolb 01-Nov-15 01:00
Re: More comet evidence in support of Velikovsky 206 Laird Scranton 01-Nov-15 01:36
Re: More comet evidence in support of Velikovsky 260 skakos 03-Nov-15 09:51
Conspiracy... 195 skakos 03-Nov-15 11:19
Re: More comet evidence in support of Velikovsky 184 OCaptain 30-Oct-15 20:02
Re: More comet evidence in support of Velikovsky 274 Laird Scranton 30-Oct-15 20:30
Re: More comet evidence in support of Velikovsky 175 OCaptain 31-Oct-15 00:56
Re: More comet evidence in support of Velikovsky 194 Laird Scranton 31-Oct-15 02:04
Re: More comet evidence in support of Velikovsky 185 OCaptain 31-Oct-15 12:14
Re: More comet evidence in support of Velikovsky 198 Laird Scranton 31-Oct-15 15:41
Re: More comet evidence in support of Velikovsky 153 OCaptain 31-Oct-15 20:03
Re: More comet evidence in support of Velikovsky 196 Laird Scranton 31-Oct-15 21:26
Re: More comet evidence in support of Velikovsky 188 OCaptain 01-Nov-15 12:10
Re: More comet evidence in support of Velikovsky 201 drrayeye 01-Nov-15 13:50
Re: More comet evidence in support of Velikovsky 223 carolb 01-Nov-15 15:11
Re: More comet evidence in support of Velikovsky 203 drrayeye 01-Nov-15 16:52
Re: More comet evidence in support of Velikovsky 209 Laird Scranton 01-Nov-15 16:56
Re: More comet evidence in support of Velikovsky 252 carolb 01-Nov-15 17:14
Re: More comet evidence in support of Velikovsky 181 Laird Scranton 01-Nov-15 18:27
Re: More comet evidence in support of Velikovsky 192 drrayeye 01-Nov-15 21:57
Re: More comet evidence in support of Velikovsky 163 Laird Scranton 01-Nov-15 16:03
Re: More comet evidence in support of Velikovsky 203 OCaptain 01-Nov-15 19:35
Re: More comet evidence in support of Velikovsky 288 Laird Scranton 01-Nov-15 20:34
Re: More comet evidence in support of Velikovsky 209 Starbinder 30-Oct-15 19:27
Re: More comet evidence in support of Velikovsky 237 carolb 30-Oct-15 20:01
Re: More comet evidence in support of Velikovsky 187 laughin 30-Oct-15 20:17
Re: More comet evidence in support of Velikovsky 210 Starbinder 30-Oct-15 20:24
Re: More comet evidence in support of Velikovsky 246 carolb 30-Oct-15 20:46
Re: More comet evidence in support of Velikovsky 251 Starbinder 30-Oct-15 21:14
Re: More comet evidence in support of Velikovsky 211 carolb 30-Oct-15 23:11
Re: More comet evidence in support of Velikovsky 188 Starbinder 31-Oct-15 01:05
Re: More comet evidence in support of Velikovsky 203 Starbinder 02-Nov-15 19:40
Re: More comet evidence in support of Velikovsky 232 carolb 02-Nov-15 21:21
Re: More comet evidence in support of Velikovsky 198 Starbinder 06-Nov-15 14:53
Re: More comet evidence in support of Velikovsky 347 carolb 06-Nov-15 15:16
Re: More comet evidence in support of Velikovsky 196 Starbinder 06-Nov-15 18:50
Re: More comet evidence in support of Velikovsky 208 carolb 06-Nov-15 20:10
What about scientism? 214 drrayeye 07-Nov-15 08:19
Re: What about scientism? 218 carolb 07-Nov-15 12:59
Re: What about scientism? 235 OCaptain 07-Nov-15 13:55
Re: What about scientism? 302 carolb 07-Nov-15 17:37
Re: What about scientism? 230 drrayeye 07-Nov-15 19:55
"Blue sky thinking" 222 randompHactor 07-Nov-15 20:15
Re: What about scientism? 218 carolb 07-Nov-15 20:41
Re: What about scientism? 199 drrayeye 07-Nov-15 23:36
Re: What about scientism? 189 carolb 07-Nov-15 23:45
Re: What about scientism? 241 laughin 09-Nov-15 02:51
Re: More comet evidence in support of Velikovsky 336 laughin 30-Oct-15 15:03
Re: More comet evidence in support of Velikovsky 298 OCaptain 29-Oct-15 23:20
Re: More comet evidence in support of Velikovsky 430 Laird Scranton 29-Oct-15 23:51
SUMMARY? 219 skakos 02-Nov-15 21:33
Mod Note > skakos – Switch View 223 Dr. Troglodyte 02-Nov-15 22:33
Re: SUMMARY? 315 Laird Scranton 02-Nov-15 23:22
Re: More comet evidence in support of Velikovsky 321 Laird Scranton 29-Oct-15 19:32
Re: More comet evidence in support of Velikovsky 176 Laird Scranton 02-Nov-15 16:53
Re: More comet evidence in support of Velikovsky 282 drrayeye 02-Nov-15 19:52
Re: More comet evidence in support of Velikovsky 154 Laird Scranton 02-Nov-15 21:02
Re: More comet evidence in support of Velikovsky 269 Laird Scranton 03-Nov-15 14:44
Re: More comet evidence in support of Velikovsky 165 drrayeye 03-Nov-15 16:09
Re: More comet evidence in support of Velikovsky 193 OCaptain 03-Nov-15 18:32
Re: More comet evidence in support of Velikovsky 189 Laird Scranton 03-Nov-15 18:46
Re: More comet evidence in support of Velikovsky 325 laughin 03-Nov-15 19:28
Re: More comet evidence in support of Velikovsky 164 laughin 03-Nov-15 19:02
Re: More comet evidence in support of Velikovsky 222 Laird Scranton 03-Nov-15 21:02
Re: More comet evidence in support of Velikovsky 193 Laird Scranton 03-Nov-15 04:58
Re: More comet evidence in support of Velikovsky 203 Ratcho 03-Nov-15 06:18
Re: More comet evidence in support of Velikovsky 178 Laird Scranton 03-Nov-15 14:30
Regarding myths... 197 skakos 03-Nov-15 11:46
Re: Regarding myths... 189 Laird Scranton 03-Nov-15 17:00
Re: off topic... 176 Ratcho 03-Nov-15 20:15
Re: More comet evidence in support of Velikovsky 254 skakos 04-Nov-15 13:28
Re: More comet evidence in support of Velikovsky 199 skakos 04-Nov-15 15:07
Re: More comet evidence in support of Velikovsky 186 skakos 04-Nov-15 15:11
Re: More comet evidence in support of Velikovsky 616 skakos 04-Nov-15 22:22
Re: More comet evidence in support of Velikovsky 311 Laird Scranton 05-Nov-15 01:11
Re: More comet evidence in support of Velikovsky 200 skakos 05-Nov-15 14:10
Re: More comet evidence in support of Velikovsky 195 Laird Scranton 05-Nov-15 14:23
Re: More comet evidence in support of Velikovsky 287 skakos 05-Nov-15 19:32
Re: More comet evidence in support of Velikovsky 185 Laird Scranton 05-Nov-15 19:42
Re: More comet evidence in support of Velikovsky 266 Laird Scranton 04-Nov-15 21:23
Cosmic Disconnect 207 laughin 06-Nov-15 15:00
Re: Cosmic Disconnect 164 OCaptain 07-Nov-15 13:49
Re: More comet evidence in support of Velikovsky 365 skakos 16-Nov-15 12:46
Re: More comet evidence in support of Velikovsky 288 OCaptain 16-Nov-15 13:54
Re: More comet evidence in support of Velikovsky 316 skakos 16-Nov-15 15:36
Re: More comet evidence in support of Velikovsky 379 OCaptain 17-Nov-15 01:23
Re: More comet evidence in support of Velikovsky 308 skakos 18-Nov-15 18:32
Re: More comet evidence in support of Velikovsky 325 Ratcho 18-Nov-15 18:45
Re: More comet evidence in support of Velikovsky 284 OCaptain 19-Nov-15 00:49
Re: More comet evidence in support of Velikovsky 353 skakos 19-Nov-15 07:24
Re: More comet evidence in support of Velikovsky 495 skakos 27-Dec-15 22:04


Sorry, only registered users may post in this forum.