41:
where his father worked at the court. He studied at the Jesuit college and taught physics, logic, and metaphysics for a while in Lyons and then at Aix. In 1728 he became a professor of hydrography at
Marseilles where he taught navy officers navigation and other aspects. He wrote on hydrography, the
42:
measurement of tonnage, differential calculus. In 1749 he became director of the
Observatoire St-Croix in Marseilles. Tomás Cerdá worked at the Marseilles observatory under Padre Pézenas and studied mathematical techniques. Pézenas translated the work of the English chronographer
46:
in 1767 for use in the accurate determination of longitudes and was involved in the computation of the longitude of
Marseilles. PĂ©zenas claimed the role of Pierre Vernier in the invention of the Vernier scale, claiming that it was undue to give credit to
63:
while others have claimed that it was already known in the 6th century BC. Based on observations on sunspots, he computed the solar rotation period as 26 days and 9 hours. He retired in 1763 to
Avignon where he died.
257:"Inventaire chronologique des œuvres imprimées et manuscrites du père Esprit Pezenas (1692-1776), jésuite, astronome et hydrographe marseillais"
34:. Through his writings and teaching he spread ideas on astronomy, mathematics and navigation including advances in other European countries.
59:, a faint glow in the nightsky at the point opposite to the sun in 1731 but some have suggested that it was first observed in 1854 by
30:(28 November 1692 – 4 February 1776) was a French Jesuit astronomer, hydrographer, and mathematician who worked at the observatory in
322:
327:
297:
332:
209:
317:
312:
180:
133:
94:
276:
237:
82:
268:
229:
149:
256:
221:
188:
141:
102:
60:
52:
184:
137:
98:
306:
241:
106:
43:
121:
83:"France, Britain and the resolution of the longitude problem in the 18th century"
225:
56:
48:
17:
272:
233:
153:
193:
168:
31:
280:
38:
145:
122:"Vernier scales and other early devices for precise measurement"
55:. PĂ©zenas is credited with the discovery of the phenomenon of
173:Monthly Notices of the Royal Astronomical Society
169:"On a Phenomenon accompanying the Zodiacal Light"
51:or Petrus Nonius for what has been called the
8:
192:
61:Theodor Johann Christian Ambders Brorsen
73:
7:
25:
210:"Anaximenes and the Gegenschein"
1:
261:Revue d'histoire des sciences
107:10.1016/0083-6656(85)90041-8
226:10.1515/APEIRON.1975.9.1.49
126:American Journal of Physics
349:
298:Short biography in German
208:Bicknell, P.J. (1975).
120:Kwan, Alistair (2011).
255:Boistel, Guy (2003).
194:10.1093/mnras/16.2.46
81:Turner, A.J. (1985).
167:Brorsen, M. (1855).
37:PĂ©zenas was born in
323:People from Avignon
185:1855MNRAS..16...46B
138:2011AmJPh..79..368K
99:1985VA.....28..315T
87:Vistas in Astronomy
328:French astronomers
333:Jesuit scientists
146:10.1119/1.3533717
16:(Redirected from
340:
285:
284:
252:
246:
245:
205:
199:
198:
196:
164:
158:
157:
117:
111:
110:
78:
21:
348:
347:
343:
342:
341:
339:
338:
337:
303:
302:
294:
289:
288:
254:
253:
249:
207:
206:
202:
166:
165:
161:
119:
118:
114:
80:
79:
75:
70:
23:
22:
15:
12:
11:
5:
346:
344:
336:
335:
330:
325:
320:
315:
305:
304:
301:
300:
293:
292:External links
290:
287:
286:
267:(1): 221–245.
247:
200:
159:
132:(4): 368–373.
112:
93:(1): 315–319.
72:
71:
69:
66:
28:Esprit PĂ©zenas
24:
18:Esprit PĂ©zenas
14:
13:
10:
9:
6:
4:
3:
2:
345:
334:
331:
329:
326:
324:
321:
319:
316:
314:
311:
310:
308:
299:
296:
295:
291:
282:
278:
274:
270:
266:
263:(in French).
262:
258:
251:
248:
243:
239:
235:
231:
227:
223:
219:
215:
211:
204:
201:
195:
190:
186:
182:
178:
174:
170:
163:
160:
155:
151:
147:
143:
139:
135:
131:
127:
123:
116:
113:
108:
104:
100:
96:
92:
88:
84:
77:
74:
67:
65:
62:
58:
54:
50:
45:
44:John Harrison
40:
35:
33:
29:
19:
264:
260:
250:
217:
213:
203:
176:
172:
162:
129:
125:
115:
90:
86:
76:
36:
27:
26:
318:1776 deaths
313:1692 births
57:Gegenschein
49:Pedro Nunes
307:Categories
68:References
32:Marseilles
273:0151-4105
242:201828831
234:2156-7093
154:0002-9505
281:23634051
214:Apeiron
181:Bibcode
134:Bibcode
95:Bibcode
39:Avignon
279:
271:
240:
232:
179:: 46.
152:
53:nonius
277:JSTOR
238:S2CID
220:(1).
269:ISSN
230:ISSN
150:ISSN
222:doi
189:doi
142:doi
103:doi
309::
275:.
265:56
259:.
236:.
228:.
216:.
212:.
187:.
177:16
175:.
171:.
148:.
140:.
130:79
128:.
124:.
101:.
91:28
89:.
85:.
283:.
244:.
224::
218:9
197:.
191::
183::
156:.
144::
136::
109:.
105::
97::
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.